Podcast

BrainStuff

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

Episodes

  • Can the Same Animal Evolve Twice?

    Jun 14 2019

    Remote islands are excellent laboratories for observing evolution at work -- and in the case of a flightless bird called the Aldabra rail, we can observe how its evolution happened twice. Learn about iterative evolution in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is a Swedish Death Clean?

    Jun 13 2019

    We humans tend to accumulate a lot of stuff -- to the point that it's a burden on our mental health. Learn about a method for lightening your life (and removing a future burden on your loved ones) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is an Oligarchy (and Are We One)?

    Jun 12 2019

    An oligarchy is a society ruled by a few wealthy, powerful people – the media has applied the term to countries from Saudi Arabia to Brazil to the United States. Learn about oligarchies and whether the U.S. has become one in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Are Honey Badgers Really Like?

    Jun 11 2019

    The honey badger is internet famous, but it’s actually a fairly mysterious creature. Learn what we know (and don’t know) about honey badgers in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does NASA Schedule Space Launches?

    Jun 10 2019

    To launch a spacecraft successfully, the stars (and moon, and planets) must literally align. Learn about all the factors that are taken into account to schedule a space launch in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Should You Bring Ear Plugs to Music Festivals?

    Jun 07 2019

    Of all the accessories you might think of bringing to a music festival, ear plugs might not be high on your list. Learn why they should be -- and how else you can prevent hearing damage -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could the Great Depression Happen Again?

    Jun 06 2019

    There were many factors that led to the depth and length of the Great Depression, but some of these mistakes are being repeated today. Learn what historians and economists are saying we should watch out for in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did Clickers Save Lives on D-Day?

    Jun 05 2019

    Tiny, handheld boxes that make a sharp clicking noise saved countless American lives during the confusion of D-Day in WWII. Learn how they were used and what to do if you have one in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Dogs Experience Puberty Like We Do?

    Jun 04 2019

    Dogs do indeed go through emotional changes and gain independence during puberty -- it just happens within the first couple years of their life. Learn how you can help your 'teen' pup grow up in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Earthly Lava Structures Help Us Colonize Space?

    Jun 04 2019

    Tunnels made from lava flows in Hawaii and Iceland are being studied by researchers in fields from geology to astrobiology. Learn how these lava tubes could help us explore space and even find extraterrestrial life in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Bad Is Prison Food?

    May 31 2019

    Serving inmates low-quality food is cheap in the short term, but it can lead all kinds of health problems that prisons (and taxpayers) pay for in the long run. Learn how cheap American prison food is and why that's a problem in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Did Victorians Collect Hair?

    May 30 2019

    In the mid-1800s, many people saved loved ones' hair -- but the collection of Peter A. Browne went much, much further than that. Learn why he thought it had scientific merit -- and why it actually does today -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should You Be Afraid of Wolf Spiders?

    May 29 2019

    Short answer: Nope! Although wolf spiders may sound (and look) fearsome, they're excellent helpers around your house, getting rid of more bothersome pests. Learn about wolf spiders in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did Jane Goodall Get Her Start(s)?

    May 29 2019

    In July of 1960, 26-year-old Jane Goodall began setting up her field station at Gombe, which would become the site of the longest-running wildlife research project in history. Learn more about Jane Goodall's life and legacy in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are There Winners and Losers in a Trade War?

    May 28 2019

    On May 10, 2019, the Trump administration increased tariffs on $200 billion worth of Chinese exports from 10 percent to 25 percent. But what does that mean for the global economy? Learn about trade wars in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Many Legs Do Millipedes Have?

    May 24 2019

    Millipedes don't literally have a thousand legs, but how many do they really have? Learn about these fascinating arthropods in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Hazardous Is Peeing in the Pool?

    May 23 2019

    Urinating in chlorinated swimming pools isn't just sorta gross -- it's actually a health hazard. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Galaxies Exist Without Dark Matter?

    May 22 2019

    We previously thought that all galaxies form with the help of dark matter, but researchers just found a galaxy that doesn't seem to contain any. Learn why that's so weird and what it might mean in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why and How Are Documents Redacted?

    May 21 2019

    Court and other government documents are often presented with redactions -- that is, with some text blacked out or otherwise made unreadable. Learn how this is done -- and why -- in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Measles Reset Your Immune System?

    May 20 2019

    After the measles vaccine spread, researchers noticed that the death toll from many other diseases dropped. Learn how the measles destroys your immunity to other diseases, and why the vaccine is safe for most people, in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Introducing: Math & Magic

    May 18 2019

    How do the smartest marketers cut through the noise? And how do they manage to do it again and again? Join iHeartMedia Chairman and CEO Bob Pittman as he analyzes the Math and Magic of marketing—sitting down with today's most gifted disruptors. Listen to the first two episodes here. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Relative Humidity?

    May 17 2019

    Relative humidity can make pleasant temperatures unbearable (and vice versa). Learn why -- and what the dew point has to do with it -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Transplanted Organs Be Reused?

    May 16 2019

    People who receive organ transplants often die with that organ working perfectly, but today, those organs are rarely retransplanted. Learn why -- and how some researchers are hoping to change that -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Agnosticism?

    May 15 2019

    Some people think that there are no effective differences between religious agnosticism and atheism, but the two standpoints are distinct. Learn how both work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Henry Ford's Feud with the Dodge Brothers Affect Businesses Today?

    May 14 2019

    The legal feud between carmakers Henry Ford and the Dodge brothers wasn't just deeply personal -- it changed the way Americans do business. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Has Anyone Been Buried on the Moon?

    May 13 2019

    Spoiler alert: Yes. But just one person. Learn who Eugene Shoemaker was and how his friends and family got him interred on the moon in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happened at America's Secret Atomic City?

    May 10 2019

    When the U.S. was building atomic bombs during World War II, it set up a secret city -- Oak Ridge, Tennessee -- to produce the uranium-235 it needed. Learn how this city worked and what it's used for today in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Some People Eat Dirt?

    May 09 2019

    The craving for and practice of eating earth is more widespread than you might think. Learn why researchers think people engage in pica (a.k.a geophagy) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is the Blobfish Blobby?

    May 08 2019

    The blobfish has been voted the World's Ugliest Animal based on above-water photos, but its gelatinous features make it perfectly adapted for life deep in the ocean. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Does the Word 'Caucasian' Really Mean?

    May 07 2019

    Caucasian' is sometimes used to mean 'white', but the word comes from an old, incorrect scientific hypothesis and has been used to perpetuate prejudice. Learn why it would be better left in the past in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Can Marsquakes Teach Us?

    May 06 2019

    Seismic activity has been recorded on Mars, and researchers hope to use the data to learn lots about the history and current state of the red planet. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Introducing: Sleepwalkers

    May 04 2019

    This is Sleepwalkers. With secret labs and expert guests, Oz Woloshyn and Karah Preiss explore the thrill of the AI revolution hands-on, to see how we can stay in control of our future. Sleepwalkers is now available.Subscribe here.  For behind the scenes information, check out the Sleepwalkers Instagram here. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Grocery Store Tomatoes So Meh?

    May 03 2019

    Many tomatoes found in large grocery stores are mealy and lack flavor. Learn why -- and what researchers are doing about it -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is the Humboldt Ocean Current?

    May 02 2019

    This cold Pacific current runs along South America's coast, creating some of the most diverse ecosystems on the planet. Learn how it works and who it was named for in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the Controversy Behind 'Mary Had a Little Lamb'?

    May 01 2019

    No, it's not the lyrics -- the author of this nursery rhyme is what's in question. Learn why -- and how Henry Ford is involved -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Often Should You Change Your Oil?

    Apr 30 2019

    You may have heard differing advice on how often to have your car's oil changed. Learn how to figure out what's right for you and your car in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Were Some Viking Warriors Women?

    Apr 30 2019

    The bones of what appears to be high-ranking Viking warrior have been proven to belong to a genetically female person. Learn the story behind this ancient grave and its occupant in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can All Plants Be Preserved in Seed Banks?

    Apr 26 2019

    Seed banks ensure that in case of disaster, Earth's plant life can be regrown from stored seeds -- but it turns out that lots of plants can't withstand conventional storage. Learn how researchers are working to solve this in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Truly Unselfish Acts Really Exist?

    Apr 25 2019

    Neurologists and philosophers alike may argue that altruism doesn't exist because no act is ever completely unselfish. Learn why -- and why humans may have evolved this way -- in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Unlikely Is a Hole-in-One?

    Apr 24 2019

    If golf is hard (and it is), sinking a hole-in-one seems practically impossible -- but it does happen. Learn the odds of getting a hole-in-one in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do People Plagiarize?

    Apr 23 2019

    Everyone borrows and builds on other people's ideas, but plagiarism is outright stealing without giving credit. Learn why plagiarism hurts both parties -- and how it might be stopped -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Can an Image of a Black Hole Teach Us?

    Apr 22 2019

    Researchers have rendered the first-ever image of a black hole. Learn how they did it and how it helps prove Einstein right in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Did NASA's Twin Study Find?

    Apr 19 2019

    NASA has been following intercellular changes in the bodies of an astronaut and his Earth-faring twin. The results are in! Learn what they found, and what further research is needed, in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Was the Emu War?

    Apr 18 2019

    Following World War II, Australia became embroiled in another war -- with a population of emu. Learn how the Emu War unfolded in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Weird Pets Have Lived in the White House?

    Apr 17 2019

    Dogs and cats aren't the only pets presidents have kept. Learn about some of the strangest presidential pets -- from a raccoon to alleged alligators -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Paleoartists Create Dinosaur Drawings?

    Apr 16 2019

    Short answer: Very carefully. Learn about the history and modern practices of paleoart in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Modern Cars Still Need Tuneups?

    Apr 15 2019

    Regular tuneups can keep some car engines running safely and smoothly, but the engines of most modern cars don't need them. Learn how car maintenance has changed in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Opossums Awesome?

    Apr 12 2019

    They eat trash and they look a little freaky, but the North American opossum is a smart, clean, disease-fighting, and all-around fascinating creature. Learn why in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What If the Meteor that Helped Wipe out the Dinosaurs Had Missed Earth?

    Apr 11 2019

    After the Chicxulub meteor hit what's now the Yucatan Peninsula about 65 million years ago, over half of the species living on Earth went extinct. Learn how prehistory may have unfolded without the Chicxulub impact in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Windowless Airplanes the Future of Flight?

    Apr 10 2019

    The view out an airplane window is one of the perks of flying, but some airlines are experimenting with windowless planes -- and advanced digital displays. Learn how these planes hope to deliver better-than-real views in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can a Medicine's Inactive Ingredients Be Harmful?

    Apr 09 2019

    Though we take medicines for their active ingredients, the inactive ones can affect us, too -- from allergens to sugars to animal-based gelatin capsules. Learn how a compounding pharmacy can help in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Common Is Postpartum Depression in Dads?

    Apr 08 2019

    Men can experience postpartum depression, too. Learn why researchers think it happens -- and why it's so important to get treatment -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Cramming the Worst Way to Study?

    Apr 05 2019

    Cramming for a test or other deadline may give you decent short-term results, but research shows it sacrifices long-term comprehension and memory. Learn why study methods like spacing and interleaving are better in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does the Pollen Count Work?

    Apr 04 2019

    Your local weather report may include a pollen count, but what does that mean, and how do they calculate it? Learn the science behind this sneeze factor in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Don't Snakes Have Legs?

    Apr 03 2019

    Some snakes still carry the genes necessary to grow legs -- so why don't they? Learn how snakes may have lost their legs, evolutionarily speaking, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Mail Carriers Get Their Routes?

    Apr 02 2019

    Delivering mail to all 372 million Americans along all 214,000 postal routes is no easy task. Learn how the U.S. Postal Service designs those routes in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Can Babies See in the Womb?

    Apr 01 2019

    A human fetus doesn't develop retinas until around gestational week 28. Learn how researchers have tried to figure out what babies can see in the few remaining weeks before they're born in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should We Retest Licensed Drivers Periodically?

    Mar 29 2019

    Although some driving skills can deteriorate with age, experienced drivers tend to be the safest drivers. To an extent. Learn when and how experts think drivers should be retested in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is Horseshoe Crab Blood So Expensive?

    Mar 28 2019

    Horseshoe crab blood is one of the most valuable fluids on Earth due to it's ability to detects endotoxins released by bacteria. But what does this mean for the species? Learn what the future may hold for these primitive animals in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could California Get an Autobahn?

    Mar 27 2019

    California legislators are considering creating speed-limit-free areas on some of their roadways. Learn how this might work (and why it might NOT work) on today's episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is the Mandela Effect?

    Mar 26 2019

    When many people share a false memory, that's the Mandela Effect in action -- but how does it happen? Learn how our individual brains misremember stuff and how false memories can spread in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens to Donated Blood?

    Mar 25 2019

    After you donate blood, it goes through a complex system of testing, processing, and storage before it can be delivered to patients who need it. Learn how the system works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Would 'Medicare for All' Really Mean?

    Mar 22 2019

    Some liberal U.S. politicians are promoting concepts of 'Medicare for All'. Learn how these proposals are different than the current American health care system (and how they compare to other countries' systems) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Cashmere Cost So Much?

    Mar 22 2019

    Cashmere can be more expensive than other wools because producing it is such an intensive process -- for the goats that grow it and the humans who care for them. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did Sealab Work?

    Mar 20 2019

    In the 1960s, advances in technology allowed brave aquanauts to explore deeper into the ocean than ever before, but the project was shut down. Learn how Sealab worked -- and how that technology is still used today -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Can Earth's Deserts Teach Us About Martian Life?

    Mar 19 2019

    To prepare for the search for microbial life on Mars, researchers are probing some of the harshest environments on Earth -- like the Atacama Desert. Learn how this work will inform future space missions in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did Desi Arnaz Change Television?

    Mar 18 2019

    Lucille Ball's ex-husband wasn't just her 'I Love Lucy' co-star and writing partner -- Desi Arnaz changed the way television is produced and watched. Learn about his contributions to the industry in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Our Galaxy Warped?

    Mar 15 2019

    Our galaxy isn't a flat disk -- it's warped like melted vinyl record. Learn how researchers discovered this and why they think it happened in today's episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can an Insurance Company Label an ER Visit 'Avoidable'?

    Mar 14 2019

    A U.S. insurance companies has started cracking down on expensive emergency room visits by labeling some 'avoidable' and kicking the bills to the patients. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the History (and Future) of Toilets?

    Mar 13 2019

    The 'modern' toilet was invented in the 1700s. So what was it like in the past, and how could we improve on it in the future? Learn more about waste technologies in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are We Living in a New Epoch?

    Mar 12 2019

    Some geologists say that humans have had a big enough impact on the Earth that we should declare a new epoch -- the Anthropocene. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Are Airlines Cracking Down on Emotional Support Animals?

    Mar 11 2019

    Emotional support animals are a real and useful therapy tool, but not all of them are trained to deal with the crowds and stresses of air travel. Learn what airlines can and can't do to prevent accidents in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can the Fear of Public Speaking Be Conquered?

    Mar 08 2019

    As many as 7 in every 10 Americans have a fear of public speaking. Learn how this type of social anxiety develops -- and what you can do to fight it -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Long Can Animals Hold Their Breath?

    Mar 07 2019

    Humans tend to max out at a couple minutes of breath holding, but some air-breathing reptiles and even mammals have evolved to spend extreme lengths of time underwater. Learn how long (and how they manage it) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's in Movie Theater Popcorn?

    Mar 06 2019

    The salty, buttery popcorn sold in movie theaters is nigh irresistible, but there's zero butter involved. Learn what it's made of in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is NASA Going Back to the Moon?

    Mar 05 2019

    NASA is planning a new series of moon missions, with the goal of sending astronauts back by 2028. Learn what they're hoping to build and study there in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where Do Sandman Myths Come From?

    Mar 04 2019

    People have been telling stories about the Sandman -- named for his magic sand, which you may find crusting your eyelashes when you wake up -- for centuries. Learn some of the oldest known stories and how they may have emerged in today’s BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Has the HANS Device Improved Car Racing?

    Mar 01 2019

    The HANS device supports a driver's head and neck in the event of a race car crash, saving lives. Learn its history in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Have We Hit Peak Recycling?

    Feb 28 2019

    Recycling rates seem to have plateaued in the United States, which is bad news for the environment. Learn why this happened -- and what might be done to help fix it -- in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Flying Squirrels Glow Hot Pink in UV Light?

    Feb 27 2019

    As it turns out, most flying squirrels glow hot pink in ultraviolet light. Learn what researchers think may be the reason in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can You Help a Friend with Depression?

    Feb 26 2019

    We all know we're supposed to reach out to friends and family experiencing depression, but it's an intimidating prospect. Learn how to get a conversation started in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Isn't Arkansas Pronounced 'Ar-Kansas'?

    Feb 25 2019

    Kansas and Arkansas are spelled similarly but pronounced very differently. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Can't 911 Find You If Lyft Can?

    Feb 22 2019

    Smartphone apps like Lyft and even Facebook seem able to identify our location with near-perfect accuracy, but the 911 emergency service still struggles. Learn why -- and what's being done about it -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's Really Happening on Plum Island?

    Feb 21 2019

    The research facility on New York's Plum Island holds some of the most dangerous livestock diseases known to humankind. Learn about its history (and uncertain future) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does a 500-Year Experiment Work?

    Feb 20 2019

    Bacteria can survive way longer than humans under the right conditions, so a team of researchers designed an experiment on microbes that will take 500 years to complete. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should You Be Squatting More?

    Feb 19 2019

    Short answer: Yeah, probably. Most Westerners have traded squatting for sitting and standing, to the detriment of our backs and joints. Learn the benefits of a good squat -- and how you can incorporate them into your day -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Did the Opportunity Rover Teach Us?

    Feb 19 2019

    After 15 years, NASA has officially ended the mission of the Mars rover Opportunity. Learn what the little-robot-that-could helped us discover about the planet (and interplanetary missions) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Was Earth's Oldest Rock Found on the Moon?

    Feb 15 2019

    The oldest known intact Earth rock was collected on the moon in the 1970s. Learn how researchers think it got there it in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Genetics Grow a Square Tomato?

    Feb 14 2019

    Researchers have found genes that help determine the shapes of fruits and vegetables. Learn how this could (and couldn't) change what you see at the grocery store in today's episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why a Gaggle of Geese? Where Do Collective Nouns Come From?

    Feb 13 2019

    About 500 years ago, creating clever collective nouns for groups of animals, objects, and people was trendy, and some of those nouns of assemblage stuck. Learn the history of this quirk of the English language in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are People Fascinated with the Number 23?

    Feb 13 2019

    Some people hold that the number 23 has near-magical significance, but how did this fascination start? And can mere coincidences have real meaning? Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Sloths' Toilet Habits So Dangerous?

    Feb 12 2019

    Sloths only defecate once a week or so, and more sloths die during the process than at any other time. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Suburbs So Unwalkable?

    Feb 08 2019

    Many modern cities feature grided streets made for walking, but suburbs' wide, winding roads require cars to get around. Learn why, plus how it might change, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's Up with the New 'Tesla Tower'?

    Feb 07 2019

    A company has built a tower in Texas that resembles Nikola Tesla's famed Wardenclyffe Tower. Learn what we know (and don't know) about it so far in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Whales Big (But Not Bigger)?

    Feb 06 2019

    Whales are some of the largest creatures on Earth -- but why? And why aren't they bigger? Learn a whale of a tale about ocean mammals in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Quinoa Unhealthy For Its Producers?

    Feb 05 2019

    Quinoa is hailed as a healthy, high-protein substitute for grains, but some reports have indicated that its popularity hasn't been good for the people who farm it. Learn why, and what researchers are doing about it, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Electric Cars or Gasoline-Powered Cars Faster?

    Feb 04 2019

    A car's quickness and overall speed depend on both the power of the engine and the way that energy is routed throughout the vehicle. Learn why electric vehicles can be quicker (but aren't as fast) as gas-powered cars in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Peat Bogs So Good at Preserving Human Remains?

    Feb 01 2019

    Human bodies buried in bogs can retain some features -- like perfectly preserved skin, right down to forehead wrinkles -- for thousands of years. Learn how this natural mummification process works in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will Saturn's Rings Last Forever?

    Jan 31 2019

    Short answer: Nope! As it turns out, Saturn's rings are fairly new, and they'll only be around a while longer. Relatively speaking. Learn how researchers discovered this in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Don't Penguin Feet Freeze?

    Jan 30 2019

    Standing barefoot on a glacier, human feet would freeze solid -- but penguin feet are fine. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Light?

    Jan 29 2019

    Is light a particle or a wave? Or both? Or neither? Learn how humans have defined light throughout history -- including our best attempts today -- in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Many People Really Have Food Allergies?

    Jan 29 2019

    There's a lot of confusion over food allergies, intolerances, and other disorders with similar symptoms. So how can you tell the difference, and how many of us should be concerned? Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can We Save the World's Coral?

    Jan 25 2019

    Much of the world's coral is in danger, but a recently developed farming technique could help it regrow. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Coffee Drinks Often Have Italian Names?

    Jan 24 2019

    Many popular coffee drinks in America have Italian (or faux-Italian) names, but why? Learn the history behind these names in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can a Star Become a Giant Crystal?

    Jan 23 2019

    After our sun dies, it and many other stars will eventually crystallize. Learn how astrophysicists figured this out -- and how it works -- in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Footballs Fly Farther in Denver?

    Jan 22 2019

    Denver's Mile High Stadium sits a full mile above sea level -- is that distance really enough to make a difference in the air compared with other stadiums, and thus in how footballs fly there? Learn more in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are the Dare Stones Forgeries or the Key to the Roanoke Mystery?

    Jan 21 2019

    In the 1930s, stones surfaced that might explain what happened to the settlers of the lost colony of Roanoke. Learn their story -- plus how modern science might help determine whether they're real -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could a Vaccine Help Save Honey Bees?

    Jan 18 2019

    Honey bees are dying off due to a number of dangers, including bacterial diseases. Learn how researchers are hoping to help these important pollinators in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did the 'Green Book' Change Life for Black Travelers?

    Jan 17 2019

    Before the Civil Rights Act made racial discrimination illegal, black Americans faced even greater dangers while on the road. Learn how a Bronx mailman made travel safer and supported black entrepreneurs in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Lobster So Expensive?

    Jan 16 2019

    Lobster hasn't always been a luxury -- and prices have the potential to drop again. Learn the history and politics behind these tasty crustaceans in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the Biggest Building on Earth?

    Jan 15 2019

    To create the biggest-ever airplanes, Boeing created the biggest-ever building. (Before they learned to control the temperature, clouds formed near its ceiling.) Learn more about this mammoth structure in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Bruises Change Color?

    Jan 14 2019

    Bruises can turn a rainbow of colors before they heal -- but why? Learn the science behind color-changing contusions in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Hemp Become America's Biggest Crop?

    Jan 11 2019

    New legislation in the United States allows farmers to grow hemp -- cannabis's non-psychoactive cousin. Learn why this could become big business in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the History of Nail Polish?

    Jan 10 2019

    The nail polishes popular today owe their existence to the automotive industry, but the history of nail colors and varnishes goes back millennia. Learn the history of nail polish in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Makes Some Lakes Explode?

    Jan 09 2019

    Given the right depth, temperature, and access to volcanic gases, lakes can explode and kill thousands in the process. Learn how these limnic eruptions happen in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Scorpions Glow Under Black Light?

    Jan 08 2019

    Scorpions light up a glowing green under ultraviolet light. Science isn't entirely sure how but has a few theories on why. (Y'know, aside from "Scorpions are metal.") Learn more about scorpions' fluorescence in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Skim Versus Whole Milk: Which Spoils Faster?

    Jan 07 2019

    Some food safety charts claim that whole milk goes off more quickly than skim milk, but the scientific evidence is mixed. Learn more about milk science in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Does Gasoline Smell So Good?

    Jan 06 2019

    Some of you are giving this episode title serious side-eye, but believe us: some other folks think gasoline smells excellent. Delicious, even. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Does Eating Before Bed Give You Nightmares?

    Jan 05 2019

    Popular wisdom holds that eating before bed -- and especially eating spicy or 'strange' food, however you define strange -- will doom you to nightmares. But is there any science behind that? Learn more in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is the Earth Humming to Us?

    Jan 04 2019

    Our planet Earth produces a constant hum too quiet for our ears to detect, but researchers have finally captured a recording of it. Learn more about the sound, called permanent free oscillations, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Cold-Blooded Animals Survive the Winter?

    Jan 03 2019

    Reptiles and amphibians have all sorts of adaptations for surviving cold weather, even in places where temperatures dip below freezing. Learn how they manage the cold in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Restaurants' Michelin Stars Related to Michelin Tires?

    Jan 02 2019

    Receiving one or more Michelin stars is one of the highest honors in the restaurant industry. Learn how a tire company started this prestigious tradition in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Helium Make Your Voice Squeaky?

    Jan 01 2019

    If you take a pull of air from a helium balloon, you'll sound like a cartoon version of yourself for a few seconds. Learn why helium makes you so high pitched in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can We Make Better Resolutions?

    Dec 31 2018

    Humans have been making New Years' resolutions for millennia, but we're still bad at keeping them. Learn some science behind building better resolutions in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Don't Humans Have Tails?

    Dec 30 2018

    Lots of other mammals make great use of their tales, so why don't humans have them? Learn about the science of tails in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Is There A Noise Loud Enough To Kill You?

    Dec 29 2018

    You've probably experienced a noise loud enough that it hurt your ears, but could a noise be so loud that it could actually kill you? Spoiler alert: Yes. Learn more in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Whales Have Pop Songs?

    Dec 28 2018

    Whale songs are eerie, beautiful, and -- as it turns out -- completely on-trend. Learn how humpback whales share tunes among herds in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Some Words Funny?

    Dec 27 2018

    Words like 'poop' and 'wiggle' are inherently humorous, and science may have figured out why. Learn what research has to say about why some words tickle us in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Beer Foam Last Longer Than Soda Foam?

    Dec 26 2018

    Beer and soda both form sudsy bubbles when you pour them, so why does soda's foam dissipate while beer's forms a head? Learn about foam physics in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Exactly Are Frankincense and Myrrh?

    Dec 25 2018

    Frankincense and myrrh play a part not only in the story of Christmas, but in lots of other religious traditions as well -- and a few practical ones, too. Learn more about these aromatic substances in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Christmas Trees That Shape?

    Dec 24 2018

    Most of the trees decorated for Christmas don't naturally grow in a perfect cone shape -- so how do they get that way, and why did we decide on that shape in the first place? Learn about the history of Christmas trees in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Holly a Christmas Decoration?

    Dec 23 2018

    Why exactly do folks deck the halls with boughs of holly during the Christmas season? Learn about the history and legends behind holly in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Do Accents Work?

    Dec 22 2018

    Everybody has an accent -- some are just considered neutral by native speakers. Learn how accents develop and how they influence us in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens When Elevator Cables Break?

    Dec 21 2018

    Elevators cables are inspected on the regular, but what happens when one breaks? Learn about the ingenious systems that keep elevators safe when even the worst happens in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Sing in the Shower?

    Dec 20 2018

    It's somewhere between tempting and inevitable to break into song in the shower. But why? Learn about the psychology and physiology of shower singing in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Palm Oil in So Many Things?

    Dec 19 2018

    Palm oil is in lots of foods, cosmetics, and household products -- and that's a very serious thing. Learn the problems (and solutions) that palm oil presents in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Dogs Get Embarrassed When We Put Them in Costumes?

    Dec 18 2018

    The photos on social media are arguably the cutest, but how do dogs feel when we dress them up? Can dogs feel emarrassment? Learn what science has to say in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • When We Lose Weight, Where Does It Go?

    Dec 17 2018

    When we lose weight, it doesn't just vanish. Learn how our bodies shrink fat cells in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: What Is The Oldest Living Thing?

    Dec 16 2018

    To be fair, the answer to this question depends on what you consider 'living' and 'thing' to mean. Learn a few possible answers in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do We Sleep?

    Dec 15 2018

    We spend somewhere around a third of our lives sleeping, but why? Learn what happens when you sleep (and what happens when you don't) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Stop Signs Red?

    Dec 14 2018

    Stop signs were always the red octagons we know today -- so how was the color chosen, and why has it stuck? Learn about the history and psychology of red traffic signals in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Who Is Krampus?

    Dec 13 2018

    This horned holiday demon has entered our pop culture consciousness, but where do Krampus legends come from? Learn about the history of Krampusnacht in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Have Funerals Changed Since the '60s?

    Dec 12 2018

    The ways we think about funerals are bound to change over time, but the 1960s was a real turning point. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Neanderthals Laugh?

    Dec 11 2018

    Neanderthals were more like us than we previously thought, but could they laugh? Learn why researchers think they could in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Gelatin Work?

    Dec 10 2018

    Gelatin makes Jell-O wiggle and provides texture to all sorts of products, but what is it made of? Learn what's happening on a molecular level when you use gelatin in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do People Go Bald?

    Dec 09 2018

    Humans are one of the only mammals to commonly experience balding. Learn the science behind thinning hair in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do You Hate the Sound of Your Own Voice?

    Dec 08 2018

    Your voice sounds different in recordings than it does to your own ears, but why? Learn the science behind this phenomena in today's classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do We Define the Kilogram?

    Dec 07 2018

    The kilogram used to be measured against an agreed-upon chunk of metal stored in France, but no longer. Learn the new measure of this standard unit of measurement in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can I Donate My Brain to Science?

    Dec 06 2018

    Researchers, like zombies, are interested in brains of all kinds. Learn a few basics about how donating your brain to science works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Cheap Magnets Help Save Sharks?

    Dec 05 2018

    The fishing industry accidentally kills millions of sharks every year, but researchers think they've found a seriously inexpensive solution. Learn how it could work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Test Middle Schoolers' Fitness?

    Dec 04 2018

    From the outdated Presidential Fitness Test to today's FITNESSGRAM, Americans have been giving standardized fitness tests to middle school kids for decades. Learn the past and present of these exams in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Can Probiotics Really Do?

    Dec 03 2018

    Some claims make it sound like probiotics are a cure-all, but what has research found so far? Learn more about these supplements for your microbiome in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will Amazon's Corporate Megadeal Change How Business Works?

    Dec 02 2018

    Why are some politicians so eager for large businesses to set up shop in their districts? What are those businesses' real motivations in making selections? Learn what some researchers think about corporate megadeals in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is the Meaning of Life '137'?

    Dec 01 2018

    Both scientists and mystics revere the number 137, but why? Learn the significance of this seemingly humble number in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did the Inca Knot Language Work?

    Nov 30 2018

    The Inca never developed a system of writing, but they kept records and told stories through intricate knotwork. Learn what researchers know -- and what they're still looking to find out -- about Inca khipu in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Cheese Actually Make Wine Taste Better?

    Nov 29 2018

    Spoiler alert: Yes! Learn the science that makes wine and cheese go so well together in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Did London Once Have a Train for the Dead?

    Nov 28 2018

    When a city's cemeteries start filling up, one solution is to take the funerary show on the road. Learn about London's Necropolis Railway of 1854-1941 in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Dogs' Paws Smell Like Corn Chips?

    Nov 27 2018

    Dog enthusiasts sometimes revel in how their pup's paws smell gloriously of corn chips, but what causes this scent? Learn the science behind Frito paws in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are E-Cigarette Liquids Safe?

    Nov 26 2018

    The flavorings added to vape liquids are considered safe for ingestion, but what happens when we breathe them in? Learn what researchers can and can't say about the safety of vaping in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Does Saliva Work?

    Nov 25 2018

    Your saliva is a serious multitasker -- it keeps bacteria at bay, helps you digest your food, and even makes your food taste better. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do We Fart?

    Nov 24 2018

    We all pass gas, but why? Learn what's happening in your digestive system when you fart in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Black Friday the Busiest Shopping Day?

    Nov 23 2018

    It's true that millions of Americans go shopping the day after Thanksgiving, but it's not the biggest shopping day of the year. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Turkey Really Make You Sleepy?

    Nov 22 2018

    You may have heard that the tryptophan in turkey causes holiday naps, but it might not be the real culprit. Learn some turkey science in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is There a Best Way to Load the Dishwasher?

    Nov 21 2018

    Which way should the plates face? What about the silverware -- handles up or down? Do you need to pre-rinse? Learn how to make your dishwashing machine work its best in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Hot Food Seem More Satisfying?

    Nov 20 2018

    Warm foods can feel more filling than chilled foods, but why? Learn the possible explanations behind the cravings in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Apple Cider Vinegar Really Help With Weight Loss?

    Nov 19 2018

    Some proponents say that drinking apple cider vinegar is the 'secret' to losing weight. Learn what science has to say in this episode of BrainStuff. And hey, take care of yourself, OK? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Does LASIK Work?

    Nov 18 2018

    It’s one of the common vision correction surgeries accomplished with lasers, but how does it work? Is it really safe? Learn about LASIK eye surgery in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Do You Really Need to Wash Your Jeans?

    Nov 17 2018

    It may seem like an obvious ‘yes’, but denim producers often recommend washing your jeans as little as possible — if at all. Learn why (and what they recommend instead) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Carrots Really Help Your Eyesight?

    Nov 16 2018

    Conventional wisdom says that eating carrots will give you better vision, but how true is that? Learn where the idea came from in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will Temperature Changes Make You Sick?

    Nov 15 2018

    When the temperature drops (or bounces), are you more likely to get sick? Learn the science behind the old wives’ tale in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Dogs’ Noses Wet?

    Nov 14 2018

    Dogs’ noses are often wet, but why? And does a dry nose mean your pup is sick? Learn what science has to say about dogs’ noses in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could We Build A Real Gundam?

    Nov 13 2018

    Science fiction tells us our future depends on giant, humanoid robots protecting us and punching monsters. But could we really build those machines? Learn how close we are in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Ice Get Cloudy?

    Nov 12 2018

    Water usually appears clear, but ice cubes and ice on lakes often looks cloudy. Learn what has to happen for ice to freeze clear (like black ice does on roads) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Does Silica Gel Work?

    Nov 11 2018

    What is silica gel? Why are packets of it included in lots of packaging? And what would happen if you ate it? Learn how silica gel keeps moisture at bay in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: What Causes Chapped Lips?

    Nov 10 2018

    For some, winter means a daily battle against cracking, peeling lips. Learn what causes this -- and what you can do to prevent it -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Should You Answer When Asked 'What Are Your Salary Requirements'?

    Nov 09 2018

    It's a dreaded part of job interviews: "What did you make at your last job? What are your salary requirements?" Learn the science behind navigating this tricky topic in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • The End Of The World with Josh Clark Series Preview

    Nov 08 2018

    The End Of The World with Josh Clark is a 10-part podcast series on existential risks – threats that could bring humanity to a sudden and untimely end in the near future. Check out this preview, featuring a clip about our potential to spread from Earth. Listen and subscribe at Apple Podcasts, or on the iHeartRadio app, or wherever you listen to podcasts. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Effective Are Bulletproof Vests?

    Nov 08 2018

    Bulletproof vests have certainly saved lives, but exactly how bulletproof are they? Learn what they're made of and how they can fail to protect wearers in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Yeti Just a Bunch of Bears?

    Nov 07 2018

    Genetics says "probably." In this episode of BrainStuff, learn what researchers found when they submitted supposed Yeti samples for genetic testing. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Syncing Traffic Lights Reduce Traffic?

    Nov 06 2018

    Computer systems can indeed help traffic flow better by syncing stop lights' cycles. But how well does it work, and what does it take to implement? Learn how researchers hope to get you out of traffic jams in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does CBD Oil Really Work?

    Nov 05 2018

    Cannabidiol (CBD) oil, derived from cannabis, is being touted as a treatment for everything from migraines to insomnia. But how effective is it? Learn what research has (and hasn't) shown in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did a Family Feud Spawn Adidas and Puma?

    Nov 04 2018

    A battle between two brothers created the second- and third-largest sneaker companies in the world. Learn the story of the brothers Dassler in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Are Sea Cucumbers?

    Nov 03 2018

    Besides weird. Or, including weird? Learn some of the strangest features of sea cucumbers in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Did Fruit Evolve in Different Colors?

    Nov 02 2018

    Brightly colored fruit stands out against green leaves, but why is some red or pink, while others skew yellow or purple? And why are some fruits smellier than others? Learn what new research says about fruits' evolution in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Elephants' Skin So Wrinkly?

    Nov 01 2018

    Elephants have a thick hide that's wrinkled from birth, but why? Learn about the new research that's revealed the secrets to elephant skin in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Trick-Or-Treat on Halloween?

    Oct 31 2018

    The American practice of kids dressing up and demanding candy from neighbors on October 31st is fairly new, but it's based in centuries of evolving beliefs and traditions. Learn the history of trick-or-treating in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Any Superstitions Universal?

    Oct 30 2018

    Do you knock on wood or avoid particular numbers? People around the world adhere to superstitions to attempt to change their luck -- and some of those superstitions are remarkably similar. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Would You Really Stay Conscious After Being Decapitated?

    Oct 29 2018

    For everything we know about the human brain, consciousness is still mysterious. Could reports of people remaining conscious after being executed by decapitation be true? Learn what science has to say in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Would Cannibalism Have Been Calorically Worthwhile?

    Oct 28 2018

    Our paleolithic ancestors ate people sometimes. But did they partake because they were really that hungry, or for some other, cultural reason? Learn what researchers think in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is the Winchester House Built So Strangely?

    Oct 27 2018

    We can't prove whether the Winchester Mystery House is really haunted, but it was definitely built for ghosts. Lean the story of how its strange construction was one woman's unending quest in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Carve Pumpkins Around Halloween?

    Oct 26 2018

    The tradition of carving jack-o'-lanterns around Halloween goes back centuries to a folktale about a stingy man who outwits the devil. Learn the tale (and why pumpkins weren't the original carving vegetables) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Make Our Monsters Cute?

    Oct 25 2018

    Pop culture loves making horrific figures adorable, from Cthulhu plushies to 'cute' Freddy Krueger costumes. But why? Learn what researchers think about the spectrum of cute to monstrous in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Would Psychic Powers Really Cause Nosebleeds?

    Oct 24 2018

    You've seen the trope: a character strains their psychic powers and gets a nosebleed to show for it. But would this actually happen if psychic powers were real? Learn the hypothetical science in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Were Unicorns Always Sweet?

    Oct 23 2018

    The modern image of the elegant, gentle unicorn is a relatively recent invention. Learn about the history of unicorn myths and legends in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Boomers and Gen-Xers Really Work Harder Than Millennials?

    Oct 22 2018

    Millennials approach their jobs differently than previous generations, but research shows it's not how they were raised -- it's a mark of their youth. Learn how age and generational differences intersect in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Did People Once Rob Graves for Science?

    Oct 21 2018

    In the United Kingdom in the 1800s, anatomists wanted to study real bodies, but laws and cultural stigma made bodies hard to come by. Learn how the shocking Burke & Hare murder trials changed that in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Does Déjà vu Work?

    Oct 20 2018

    If you've ver gotten the strange feeling that you’re repeating an experience, researchers have about 40 theories for what was going on in your brain. Learn how déjà vu might work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Animals Survive Big Storms?

    Oct 19 2018

    Sadly, not all animals make it through major storms like hurricanes, but some have impressive survival skills. Learn how they manage in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Often Have Supreme Court Nominees Been Rejected?

    Oct 18 2018

    Many presidents' nominations of justices to the Supreme Court go through uncontested, but some have gotten seriously sticky. Learn the history of Supreme Court nominations in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Physics as We Know It About to Change?

    Oct 17 2018

    Newly researched cosmic rays seem to behave differently than the laws of physics say they should. Learn how this could help us fill in some blanks about our universe in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Can't You Reach the End of a Rainbow?

    Oct 16 2018

    Rainbows may look like they touch the ground somewhere off in the distance, but it's impossible to find that spot. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Coconut Oil a 'Superfood' or 'Pure Poison'?

    Oct 15 2018

    Recent guidelines from the American Heart Association warn that coconut oil is not a healthy food, despite popular claims that it's a miracle worker. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do Men Have Deeper Voices?

    Oct 14 2018

    Of course, everybody's voice varies, but in general male humans develop lower-pitched voices than female humans starting around puberty. Learn why in this classic episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can Sunlight Make You Sneeze?

    Oct 13 2018

    Sudden exposure to bright light makes some people sneeze -- but why? Learn the leading theory in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Was the First Computer?

    Oct 12 2018

    The first machine for computation was designed in the 1800s! Learn how its creators, Charles Babbage and Ada Lovelace, set about inventing it in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Blackface So Controversial?

    Oct 11 2018

    It may seem like folks make too big of a deal over blackface, but its history puts that outrage into perspective. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Our Bones Grow?

    Oct 10 2018

    We humans are fairly squishy, and we eat fairly squishy food. So how do we grow hard bones? Learn how it happens in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the History of Southern Biscuits?

    Oct 09 2018

    Fluffy biscuits are a cornerstone of Southern cuisine, but they're a relatively recent invention. Learn the history behind this baked good in today's episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could a Giant Squid Take Down a Submarine?

    Oct 08 2018

    Tales of squid attacking ships go way back, and there are some known instances of squid attacking subs, but could a cephalopod really take down a modern vessel? Learn what researchers think in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Ice Pops Called Quiescently Frozen Confections?

    Oct 07 2018

    You won't find the word 'popsicle' on the packaging for some ice pops -- instead, they're called 'quiescently frozen confections'. Learn why this sciencey term is used instead of the more simple one in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens to Balloons When You Release Them?

    Oct 06 2018

    How high can helium balloons go before they burst? Do they always burst? Learn about the physics of escaped balloons in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the Difference Between Weather and Climate?

    Oct 05 2018

    When concepts are as intertwined as weather and climate, it can be easy to mix them up. Learn the difference, and why it matters so much in discussions about the environment, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Was George Washington Almost King of the United States?

    Oct 04 2018

    Did the generals of the Revolutionary War really try to hand George Washington a monarchy? Learn the truth behind this slightly tall tale in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Nuclear Pasta?

    Oct 03 2018

    No, it's not radioactive noodles -- nuclear pasta is the term for weird material produced in neutron stars. Learn why astrophysicists are so interested in how it works in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Would Happen If You Wrecked a Car on a Test-Drive?

    Oct 02 2018

    If you wreck a car during a test-drive, would you have to pay for it? Learn how car dealers handle this surprisingly rare occurance in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Milk Really Make Mucus Worse?

    Oct 01 2018

    There's a millennia-old idea that milk causes mucus production, and therefore that you should avoid milk if you're sick. Learn whether there's any truth to this snotty tale in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Get Hiccups?

    Sep 30 2018

    What's happening when you get hiccups, and how can you stop them? Learn how hiccups work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Printing with Sound the Wave of the Future?

    Sep 29 2018

    It's hard to print with stuff like liquid metals and living cells using traditional inkjet-style machines, but new tech that uses sound waves may make it easier. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Jupiter Have Water After All?

    Sep 28 2018

    Astronomers have long suspected that Jupiter contains lots of water, but they've never been able to prove it. Learn about the new research that could help -- and thus solve lots of questions about our solar system -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Who Is The Laughing Buddha?

    Sep 27 2018

    Statues of this jolly fellow adorn the register counters of many Chinese American restaurants, but he's not the Buddha. Learn about this Buddhist diety in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Was The Great Pox?

    Sep 26 2018

    You've heard of smallpox, but what was the great pox? And did Shakespeare have it? Learn about the spread of (spoiler alert) syphilis in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Side Sleeping Help Prevent Snoring?

    Sep 25 2018

    Snoring can root from a number of causes, but sleeping on your side can usually help prevent it. Learn the science of snores in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Drink So Much Bottled Water?

    Sep 24 2018

    Water is essentially free, so why do Americans spend billions on bottles of it? Learn the history behind bottled water's popularity, from marketing to health scares, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do We Itch?

    Sep 23 2018

    The sensation of itchiness can be maddening. Learn what's going on in your nerves and brain when you itch -- and when you scratch that itch -- in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do Movie Theaters Sell Popcorn?

    Sep 22 2018

    For millions of moviegoers, memories visiting the local theater automatically conjures the smell of popcorn. But this wasn’t always the case – so why, out of all snacks, did popcorn become #1 for film? Learn the history in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Alzheimers's So Difficult to Treat?

    Sep 21 2018

    Despite being a widespread condition, Alzheimer's is notoriously difficult to diagnose and treat. Learn why (plus how researchers hope to make it easier) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Migrating Birds Navigate?

    Sep 20 2018

    Birds can migrate thousands of miles and back home again with no prior knowledge or assistance thanks to their superpowered vision. Learn about magnetoreception in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Did Pirates Really Talk Like That?

    Sep 19 2018

    One guy is responsible for what we think pirates sounded like. For Talk Like A Pirate Day, learn how Robert Newton changed the world in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Artists Hardwired To Be Poor?

    Sep 18 2018

    Research shows that artists' brains don't respond to monetary motivation the way that other people's do. Learn why this might be -- and whether it means we create types are doomed to poverty -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Hydrogen Peroxide Bottles Brown?

    Sep 17 2018

    Most hydrogen peroxide sold to consumers comes in opaque brown bottles. Learn why in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do So Many Price Tags End in .99?

    Sep 16 2018

    It’s very common to see the number 9 at the right end of a price tag. But why? Learn about the psychology of pricing -- and nines in particular -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Can't People Remember Being Born?

    Sep 15 2018

    You probably remember your last birthday, but not your first – or your zeroth. Learn why scientists think we lose those early memories in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Are Food Deserts?

    Sep 14 2018

    In the United States, 17.6 million American lack access to healthy food because there aren't any grocery stores or other establishments that sell fresh food in their area. Learn about food deserts and how we can fix them in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Could We Get Into Space Without Big Rockets?

    Sep 13 2018

    Large rockets are great at getting delicate equipment (and people) into space, but at a huge financial cost. Learn about some of the potential alternatives to ground-launched rockets in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Dogs Love Rolling in Stinky Stuff?

    Sep 12 2018

    Dogs are pretty much guaranteed to find the smelliest stuff to roll in -- but why? Learn what may be behind this gross instinct in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Skin Tan and Freckle?

    Sep 11 2018

    When you freckle or tan, your skin is trying to protect you from damage. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do New Religions Take Root?

    Sep 10 2018

    Hundreds of new religions pop up every year, but only a few survive and become widespread. Learn why some religions have staying power while others don't in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Do Tattoo Machines Work?

    Sep 09 2018

    Tattoo machines (sometimes called tattoo guns) haven’t changed much since the 1890s because they’re such elegant devices. Learn how the most common types work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Does Hair Dye Work?

    Sep 08 2018

    Some hair dyes are basically fine-grained paint, but dyes that stick with you for more than a couple weeks physically and chemically change each hair. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can an Ancient Pregnancy Test Actually Work?

    Sep 07 2018

    An ancient Egyptian pregnancy test has been found to work with about 70% accuracy. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Playing with Toy Guns Lead to Violent Behavior?

    Sep 06 2018

    Some parents and advocacy groups recommend against allowing children to play with toys that resemble weapons, like toy guns. But is there any science to back that up? Learn about play, parenting, and aggression in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do You Stop Noticing Scents After a While?

    Sep 05 2018

    Smells seem to disappear after a while because our brains lie to us. Not maliciously -- they think they're helping. Learn about olfactory adaptation in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Cannabis Help Break Opioid Addiction?

    Sep 04 2018

    Medical marijuana is now FDA-approved for some uses even though it's still illegal federally. Some researchers and journalists, including Dr. Sanjay Gupta of CNN, believe it could help solve the opioid crisis. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the History of Lemonade?

    Sep 03 2018

    Who were the first people to drink lemonade? How did it turn pink? Learn the folklore behind lemonade in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: What Are Eye Boogers?

    Sep 02 2018

    The gunk that builds up at the inner corners of our eyes is residue of our eyeballs' protective coatings. Learn what it’s made of and why it turns to sand overnight in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Do You Find Water In The Wild?

    Sep 01 2018

    In case you ever get stranded in the wild without an obvious source of fresh water, learn a few things you can do to collect some in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Did NASA Send Sperm Into Orbit?

    Aug 31 2018

    Research on the International Space Station studies all aspects of how humans would fare on long space missions -- including reproduction. Learn about NASA's latest reproductive science experiments in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What States Failed to Become Part of the U.S.?

    Aug 30 2018

    There are a few United States that never were. Learn their stories in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Chimps Cleaner Than Us?

    Aug 29 2018

    A study investigating the microbes and bugs in chimpanzee beds versus human beds showed that chimps are cleaner than we are. Learn about the study's results in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Bad Is It to Run Your Car on Empty?

    Aug 28 2018

    Your car's empty-tank light can sneak up on you, and it's easy to put off filling up for another day. But are you damaging your car when you do? Learn why it's not good to run your car on empty in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should You Really Take Fish Oil Pills?

    Aug 27 2018

    Conventional wisdom has long said fish oil pills are a great nutritional boost, but recent research shows they don't have the cardiovascular benefits we once thought. Learn who should still consider taking them in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do Some People Faint At The Sight of Blood?

    Aug 26 2018

    Even though only 3-4% of people have a phobia of seeing blood, about 15% of people will faint at the sight. Learn why in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Do Crosswalk and "Close Door" Buttons Really Do Anything?

    Aug 25 2018

    Are the buttons we push to cross streets, close elevator doors, and nudge the office thermostat really connected to anything? Some aren’t! Learn how these placebo buttons (don’t) work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Breakup Bootcamp?

    Aug 24 2018

    We have retreats for everything else, so why not survival post-breakup? Learn how these camps hope to help the broken hearted, plus what emotional work they won't cover, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can Squid 'Speak' With Their Skin?

    Aug 23 2018

    Squid can communicate via patterns they flash on their skin, and the way they create those patterns is stranger than anyone thought. Learn what researchers are learning about it in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Hangry a Real Emotion?

    Aug 22 2018

    If you've ever had to apologize for what you said when you were hungry, you may be comforted to know that hanger is real. Learn what causes is -- and how you can stop or even prevent it -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens When Hurricanes Hit Volcanoes?

    Aug 21 2018

    In a phrase: big bada-boom. Learn how hurricanes and volcanoes intensify each other in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Doctors' Biases Affect Health Care?

    Aug 20 2018

    Implicit biases change the way we act without us even realizing it, and doctors aren't immune. Learn how researchers are trying to help us all identify and change our unconscious biases in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Does Lucid Dreaming Work?

    Aug 19 2018

    Science has proven that we can be aware of our dreams while we’re in them. But can we really control our dreams? We break it to you gently in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: What Causes Red Eye in Photos?

    Aug 18 2018

    How can a camera's flash make your eyes glow red? Tune in to learn how it works -- and how to prevent it -- in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Yes, Your Dog Wants to Help When You're Upset

    Aug 17 2018

    Confirming what dog owners already know, new research shows that dogs really do want to help us when we're sad or upset. Learn how the experiments worked in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Head Scratching a Gesture of Thought?

    Aug 16 2018

    Some gesticulations come naturally -- scratching your head when you're thinking is so common that it's basically a cliche. But why? Learn what researchers have to say in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Spending Money on Experiences Save the World?

    Aug 15 2018

    Research shows that spending money on experiences instead of objects can make you happier, but can it make you a better person? Learn what scientists have found in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Nutrients Get into the World's Oceans?

    Aug 14 2018

    Phytoplankton are responsible for a lot of the oxygen we breathe, and their wellbeing is made possible by... deserts. Yes. Learn how the Saraha Desert and other dusty debris feeds our oceans in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Who Does the Real Magic: Magicians, or Assistants?

    Aug 13 2018

    The gender roles of traditional stage magicians and 'lovely assistants' can seem outdated, but behind the scenes, the work has always been pretty equal. Learn how being a magician's assistant works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Do Laugh Tracks Work?

    Aug 12 2018

    Sitcoms use laugh tracks all the time. But where do they come from? Do they really make us laugh along? Learn about the origins and psychology of laugh tracks in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: Why Do Dogs Tilt Their Heads?

    Aug 11 2018

    Is this adorable behavior rooted in sensory necessity or purposeful gesticulation? We explore what may be the cutest research ever in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Books Smell So Good?

    Aug 10 2018

    Researchers have set out to catalog the scent compounds that make books and libraries smell so welcoming. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can You Train a Bee?

    Aug 09 2018

    Spoiler alert: Totally. Bees and other insects can learn, and thus be trained, using scents. Learn how they could sniff out everything from bombs to cancer in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What If Bandages Could Monitor Your Wound?

    Aug 08 2018

    Today's bandages work pretty well, but is it time for an upgrade? Learn how researchers are creating smart bandages in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Makes Stars Twinkle?

    Aug 07 2018

    On a clear night, the stars seem to wink and twinkle in the sky. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can We Make Roads Out of Recycled Plastic?

    Aug 06 2018

    Plastics clog our ecosystems and our roads need maintenance -- could fixing one problem help solve the other? Learn how researchers are recycling plastics into useful materials in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Does Aspirin Work?

    Aug 05 2018

    How does aspirin target your pain? The plants that aspirin were derived from have been used as medicine for about 6000 years, we finally discovered how it works in 1971, and we explain it in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Do One-Way Mirrors Work?

    Aug 04 2018

    How can a single piece of glass look like a mirror from one side but a window from the other? Learn how materials technology makes it possible in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Different Species of Birds Understand Each Other?

    Aug 03 2018

    Birds and other animals can learn to "talk" to one another, and even work together to spread warnings about predators nearby. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Absurdly Big Numbers Be Useful?

    Aug 02 2018

    The bigger that numbers get, the harder they are for us to conceive of -- but that doesn't mean they can't be useful. Learn about some just ridiculously huge numbers in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Shouldn't You Hold in a Sneeze?

    Aug 01 2018

    Better out than in. Learn why a politely covered sneeze beats holding one back in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Did Our Ancestors Really Eat?

    Jul 31 2018

    Figuring out what foods were on ancient menus can be tricky, but a mummy called Ötzi the Iceman was preserved with his last meal still intact. Learn what scientists found out about his eating habits in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Recycled Urine Make Sustainable Fertilizer?

    Jul 30 2018

    Sports stadiums have a lot of grass that needs to be fertilized, and a lot of urine to dispose of. Learn how researchers are working to solve both problems at once in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Do Erasers Erase?

    Jul 29 2018

    Erasers lift our mistakes right off the page, but it's not magic -- it's the microscopic physics of stickiness. Learn how erasers work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: How Do Antiperspirants Work?

    Jul 28 2018

    Every day, millions of people safeguard themselves against excessive sweat with a quick roll of antiperspirant. But what does this stuff do, exactly? Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does It Feel So Good To Be Scared?

    Jul 27 2018

    Plenty of things are scary these days, so why do people pay good money to see horror movies and go to 'haunted' houses? Learn why psychologists say these fearful experiences are helpful in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Are Macronutrients and Micronutrients?

    Jul 26 2018

    Fitness enthusiasts often talk about macros and micros. Learn what they are and how much you should be eating in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Kind of Dinos Did Today's Birds Evolve From?

    Jul 25 2018

    The hypothesis that today's birds evolved from dinosaurs isn't new, but recent research has filled in clues about exactly how that happened. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • When Do Presidential Approval Ratings Really Matter?

    Jul 24 2018

    A president's approval rating may seem like just another number, but statistically speaking, it can have a huge impact on American politics. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the History of Toothpaste?

    Jul 23 2018

    Toothpaste actually predates the toothbrush in dental hygiene's history. Learn the long history behind this everyday item in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Hounds Have Floppy Ears?

    Jul 22 2018

    Sure, scent hounds' noses are powerful tools -- but their ears may be the secret to their success. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • BrainStuff Classics: What Is American Cheese Really Made Of?

    Jul 21 2018

    Process cheese, often called American cheese, is super inexpensive, consistent, shelf-stable, and orange. Learn how this science cheese is made in this classic episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should You Really Eat Activated Charcoal?

    Jul 20 2018

    Celebrities and Instagrammers have been singing the praises of activated charcoal as a health supplement, but why? Can it really help make you healthier? Learn the science behind the activated charcoal fad in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is the Museum of Broken Relationships?

    Jul 19 2018

    Museums collect all kinds of art and artifacts -- this one collects pieces of broken hearts. Learn about some of the items and stories held in the Museum of Broken Relationships in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • No, There's No 'Secret' Cure for Cancer

    Jul 18 2018

    Like many fringe theories, the idea that there's a massive conspiracy to conceal a known cure for cancer is mostly misplaced wishful thinking. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Are Vampire Squid?

    Jul 17 2018

    Despite their name and their somewhat scary appearance, 'Vampyroteuthis infernalis' squid aren't blood-suckers. Learn why they're pretty cool anyway in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Close Are We to Recycling Carbon Dioxide Emissions?

    Jul 16 2018

    Carbon dioxide is a waste product of gasoline- and coal-burning engines, and it's a serious pollutant. But what if we could capture that carbon and recycle it into usable fuel? Learn why researchers say we're getting close in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did the U.S.-Mexico Border Become Such a Flashpoint?

    Jul 13 2018

    The border between the United States and Mexico is at the center of much political and social debate in 2018 -- but how did we get here? How much crime really crosses the border? Learn more in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Did Victorians Think Green Tea Causes Hallucinations?

    Jul 12 2018

    We attribute lots of potential health effects to green tea, but the Victorians had a strange one: they thought it caused hallucinations. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Boys and Girls Bully Differently?

    Jul 11 2018

    From a young age, male and female bullies develop different ways of getting under their targets' skin. Learn more -- plus how to help kids combat girl-style bullying -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can Robots Help Catch Poachers?

    Jul 10 2018

    Robotic animals can help law enforcement agents catch poachers in the act -- but only if the robots are convincing enough. Learn a few things engineers are doing to make their robots more realistic in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are We Still Discovering Human Organs?

    Jul 09 2018

    Some researchers are calling a previously overlooked type of tissue a new human organ. Learn what it does and why it was never identified before in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Who Was the First Fashion Designer?

    Jul 06 2018

    Fashion designers and their work are everywhere these days, from our closets to the runways. But one man started it all: Charles Frederick Worth. Learn who he was and how he created haute couture in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can We Prevent Suicides While Protecting Gun Rights?

    Jul 05 2018

    Over two-thirds of gun-related deaths in America are suicides. This stunning fact is bringing gun rights and gun control advocates together for a common cause. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could the Waterbed Make a Comeback?

    Jul 04 2018

    Waterbeds were a mainstay of opulent '80s culture, but why did they fall out of fashion? How have they evolved since then? Could they climb back from the pits of public disfavor? Explore in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's Killing Ancient Baobab Trees?

    Jul 03 2018

    Spoiler alert: The answer is probably 'climate change' -- but some of the world's oldest and hardiest baobab trees are dying, and researchers aren't entirely sure why. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Feel Hungry When We're Not?

    Jul 02 2018

    Feeling hungry doesn't just happen when our bodies need calories (lots of things, from boredom to advertisements, can trigger hunger) and there's no one way that we feel hunger to begin with. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Boxer Crabs Use Anemones as Weapons

    Jun 29 2018

    Researchers have observed a species of crab clutching anemones and using them as weapons. Even weirder: The crabs clone their anemones. Weirder still: The anemones might be otherwise extinct. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Beaches Be Saved by Adding Sand?

    Jun 28 2018

    Beaches around the world are erode faster than we've ever seen. Some efforts to save them involve adding more sand from offshore -- but can that really work? Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • When Will Arlington Cemetery Run Out of Space?

    Jun 27 2018

    The U.S.'s most honored national cemetery is vast, but it only has so much space -- and it's running out. Learn some of the proposed solutions in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can the Fashion Industry Better Serve People with Disabilities?

    Jun 26 2018

    Finding something to wear can be especially challenging for people with limited dexterity or mobility, but some fashion designers are starting to change that. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Type 2 Diabetes Reversible?

    Jun 25 2018

    Although doctors have long believed that Type 2 diabetes is a lifelong condition, research shows that it can be reversed -- and that with work to maintain weight loss, former patients can live without medication. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Music's 'Word' for Death?

    Jun 22 2018

    Composers use musical references to classics in their own work to help create mood -- and as a wink at other music lovers. Learn how one such reference, 'Dies Irae', or 'The Day of Wrath', is often used in film soundtracks in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Copper Create Mummies?

    Jun 21 2018

    After anthropologists discovered a child's mummified hand, they discovered that a copper coin might be responsible for the preservation. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Dogs Use Facial Expressions to Communicate with Us?

    Jun 20 2018

    It seems that dogs make more expressive faces when humans are watching. Are they trying to communicate? Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Life on Earth of Alien Origin?

    Jun 19 2018

    The idea that life on Earth was seeded from outer space is called Panspermia, and some researchers are looking into how (and when) it could've happened. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Cockroach Milk the Next Big Thing?

    Jun 18 2018

    The food industry has brought us all kinds of non-dairy milk alternatives, but researchers are working on what's arguably the weirdest yet: cockroach milk. Learn how (and why) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are We Moving Closer to 'Eternal Sunshine of the Spotless Mind'?

    Jun 15 2018

    We build memories through our experiences. But what if we could transfer memories to other people? It's happening -- in snails. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Microwaved Coffee Taste So Bad?

    Jun 14 2018

    Once a cup of coffee goes cold, it'll never taste the same -- but why? Learn the science behind the weird flavors of microwaved coffee in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • The Man Behind Rube Goldberg Machines

    Jun 13 2018

    Who was Rube Goldberg, and how did he come up with his famously weird contraptions? Learn the history behind this classic American cartoonist in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can You Really Catch Up on Sleep?

    Jun 12 2018

    Good news, fellow weekend sleep-in-ers: recent research shows that 'catching up' on sleep on your off days can help you stay healthy. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Sea Spiders Breathe Through Their Legs?

    Jun 11 2018

    Sea spiders have way more leg than body, and scientists have never been able to pinpoint how they breathe -- until now. Learn what they found in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How One Blood Donor Saved Over 2 Million Babies

    Jun 08 2018

    A man with a rare antibody in his blood spent 63 years donating, and has touched millions of lives. Learn how in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Spicy Food Burn Your Tastebuds?

    Jun 07 2018

    Hot chili peppers can make you feel like your mouth is on fire, but are they actually doing any damage? Learn about the science of spice in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could a Plastic-Eating Enzyme Help Save the Planet?

    Jun 06 2018

    We humans produce a LOT of plastics that wind up as harmful waste, but researchers have isolated an enzyme that may help reduce the problem. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Can't You Name Your Baby?

    Jun 05 2018

    The possibilities for a baby's name aren't quite as endless as they seem -- some national and local governments restrict what you can legally name your baby. Learn what some of those restrictions are (and why they exist) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens to Red Carpet Dresses?

    Jun 04 2018

    After celebrities wear a gown to a glitzy award show or festival, it's often archived, but sometimes sold, reproduced, or even stolen. Learn the life story of red carpet fashion in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will the Paper of the Future Be Made from Poop?

    Jun 01 2018

    It might sound gross, but it's eco-friendly: Paper is made from plant pulp. Animals that eat plants excrete plant pulp. Learn why some researchers have high hopes for poo-pyrus in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Earth's Crust Have Its Own Tides?

    May 31 2018

    You've probably seen ocean tides making the seas rise and fall, but solid land has tides, too. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can You Be Your Own Twin?

    May 30 2018

    In a genetic condition called chimerism, DNA from someone else (an unborn twin, an organ donor, or even your own baby) is at work in your body. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can You Microwave a Steak to Perfection?

    May 29 2018

    While it may not be our first choice in cooking methods, yes, you can microwave a steak to a perfect medium-rare. Learn how, plus how microwaves work, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Turtles Have Shells?

    May 28 2018

    It seems obvious that turtles' shells would have evolved to protect them from predators, but researchers have found that they probably first evolved to help turtles dig. Learn what that's all about in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Uranus Stink?

    May 25 2018

    It's not a joke: Scientists have confirmed that Uranus stinks. Learn how they found out -- and why it's actually really cool -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Coffee Good or Bad for You?

    May 24 2018

    Will coffee really stunt your growth? Or give you heart problems? What about your teeth? Learn the truth behind common myths about that cuppa joe in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Snails Grow Their Shells?

    May 23 2018

    A snail's shell is its permanent home -- but how do these wee, soft, slimy creatures grow hard, beautiful shells? Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Was Stephen Hawking's Final Project?

    May 22 2018

    Days before his death, theoretical physicist Stephen Hawking finished what would be his final research paper. Learn about his last take on the multiverse in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Popping Zits So Satisfying?

    May 21 2018

    Humans love popping zits so much precisely because it's gross. Learn about all the fascinating reasons why we find pimples so fascinating in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can We Save the Moai?

    May 18 2018

    The beautiful moai statues of Rapa Nui (aka Easter Island) are in danger from rising sea levels and erosion -- but what can be done to save them? Learn what researchers are saying in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should Airplanes Have Shoulder Seat Belts?

    May 17 2018

    Cars have shoulder seat belts to protect passengers, so why not large airplanes? Learn the physics involved, plus why buckling up on planes is important, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Easy Is It to Immigrate to the U.S.?

    May 16 2018

    From the way some people talk, it may seem like immigrating to America is simple -- but the wait list can actually be more than 20 years long. Learn more about how immigration works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Are the Most-Believed Myths About Our Brains?

    May 15 2018

    Over-simplifications about how our brains work abound, even among educators and neuroscientists. Discover what these myths are, and why it's important to fight them, in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • City Birds Use Cigarette Butts as Bug Repellent

    May 14 2018

    Birds everywhere add insect-repelling plants to their nests, but urban birds have to get a little creative. Learn how cigarette butts help city birds stay healthy in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do We Define 'Suspicious Behavior' Without Bias?

    May 11 2018

    If you see something, say something' works great -- until racial bias and other prejudices enter the picture. Learn what some organizations are doing to fight those prejudices (and what you can do, too) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will Ants Rescue Wounded Comrades?

    May 10 2018

    Spoiler alert: Yep! Well, sometimes. In this episode of BrainStuff, learn how one African ant species nurses its wounded soldiers, yielding a surprising survival rate. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Red Snow?

    May 09 2018

    Snow usually appears white, but it can come in a few other colors -- and in the case of red snow, that vibrant color may be a warning from Mother Nature. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Chinese Five Spice?

    May 08 2018

    Including 'tasty' and 'not necessarily made up of five spices,' Chinese 5-spice powder can be a lot of things, but it's all rooted in ancient medicine -- and philosophy. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the Happiest Country in the World?

    May 07 2018

    The World Happiness Report usually ranks wealthy Nordic countries as the happiest, but what factors is it taking into account? Based on other data, Colombia and El Salvador come out on top. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's Chocolate's Carbon Footprint?

    May 04 2018

    We're not asking anyone to give up chocolate, but researchers have posed an important question: How can we make it more environmentally friendly? Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can a New Egyptian Dinosaur Fossil Explain How the Continents Formed?

    May 03 2018

    Scientists have figured out a lot about Earth's history, but there are still a few gaps. Learn how a dinosaur may help fill in one of those gaps in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Nuclear Weapons Testing Created New Minerals

    May 02 2018

    The heat of nuclear weapons is enough to melt sand into glass. Learn the story of trinitite, the glass from the first atomic test site, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Talking About Yourself in the Third Person Make You Feel Better?

    May 01 2018

    It can sound off-putting, but it turns out that people who talk about themselves in the third person may be giving themselves a mental boost. ("You're nailing this episode description, Lauren!") Learn why in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Happy Cows Really Make Better Milk?

    Apr 30 2018

    OK, 'happy' might be a stretch, but researchers are looking into how cows given positive interactions (like back scritches) grow and produce milk versus less-content cows. Learn what the results say in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can Your Birth Season Determine Your Allergies?

    Apr 27 2018

    The season you were born in helps determine whether you'll have allergies, but science has never understood why. Learn what a team of researchers are discovering in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Shouldn't Compressed Air Canisters Be Shaken?

    Apr 26 2018

    Many spray canisters call for being shaken, but not compressed air. Learn how both types work (and the dangers of shaking the wrong type) in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Can't I Taste My Tongue?

    Apr 25 2018

    Your tongue is an amazing sensory instrument -- so why can't it taste itself? Many philosophers have pondered the same thing. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Was the First Killer Robot?

    Apr 24 2018

    Science fiction buzzes with evil robots and AI, but real-life machines are much less sinister -- if not less potentially deadly. Learn the real concerns (and possible solutions) about killer robots in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Our Tipping System Gratuitous?

    Apr 23 2018

    The way we tip and pay servers in North American restaurants fosters unfair and unequal paychecks for the whole staff. But it's so entrenched -- how can we fix it? Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Were Fruit Flies the First Animal in Space?

    Apr 20 2018

    In 1947, U.S. military scientists launched the very first Earth animals into space: fruit flies. But why these diminutive bugs in particular? Learn about their trip to the final fronteir in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Did an 19th-Century Man Predict Your Death?

    Apr 19 2018

    In the 1820s, an insurance actuary by the name of Benjamin Gompertz wrote an equation that reliably predicts when people are going to die. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is the Human Brain Hardwired for Poetry?

    Apr 18 2018

    Poems activate different parts of the human brain than other types of literature do, and our brains seem hardwired to enjoy the patterns in poetry. Learn why this may be in today's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens to Wine Grape Waste?

    Apr 17 2018

    After winemakers extract grapes' juice, they're left with a lot of fruit skins and pulp. Learn what happens to all that goo in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are So Many People Nearsighted?

    Apr 16 2018

    By 2050, half the world will be nearsighted. Researchers tracking the spread of this eye condition (also called myopia) have a few hypotheses about why it's happening. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can a Plant Outsource Photosynthesis?

    Apr 13 2018

    Plants use photosynthesis to survive, but some plants outsource that job to other living things, like fungus. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Much Electricity Can Urine Provide?

    Apr 12 2018

    Researchers have created pee-powered fuel cells that can light outdoor portable bathrooms. Learn how (and why) in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Platypus Milk Fight Antibiotic-Resistant Disease?

    Apr 11 2018

    For everything that's weird and wondrous about the platypus, we probably shouldn't be surprised that its milk may help save countless lives, but here we are. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Diabetes Lead to Disordered Eating?

    Apr 10 2018

    People with Type 1 diabetes are more likely to experience eating disorders, and the consequences can be serious. Learn why, and what can be done to help, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Makes Durian Fruit Smell So Bad?

    Apr 09 2018

    Durian fruit is prized as a delicacy and staple -- and it smells like rotting. Learn how a group of cancer researchers mapped its genome to get to the bottom of this stench (and hopefully find something medicinally useful) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is There a Gene for Infidelity?

    Apr 06 2018

    Some animals mate for life -- and others decidedly don't. Learn what researchers have discovered about cheating by studying voles and humans alike in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Much Salt Is Too Much?

    Apr 05 2018

    You've probably heard you should cut back on salt, but we need it to survive -- we're hardwired to crave it. So why cut back? And how much is actually harmful? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Is New Laser Technology Discovering Ancient Ruins?

    Apr 04 2018

    Ancient ruins, long grown over by massive forests, can now be found painlessly -- all thanks to lasers. Learn how LiDAR techology is preserving forests and uncovering lost Mayan infrastructure in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Prozac Endangering Crabs' Survival?

    Apr 03 2018

    When we take medications, we sometimes excrete chemicals that get flushed into our oceans. In the case of fluoxetine (Prozac), those chemicals seem to be chilling crabs out -- which is bad for the crabs. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Botox Exists Thanks to Bad Sausages

    Apr 02 2018

    Botox wrinkle therapy contains a tiny dose of a deadly bacterial toxin, but the story of how it was discovered is even stranger than that fact. Learn the history of botulinum toxin, plus how it's used in non-cosmetic medicine, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Your Face's Temperature Reveal Your Mood?

    Mar 30 2018

    Research shows that parts of a person's face grow cooler depending on their mood and stress level. Could this be used to help people in stressful jobs, like pilots?  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the Difference Between Eggs of Different Colors?

    Mar 29 2018

    Brown, white, blue, or green: Chicken eggs come in a spectrum of colors, but they all cook up the same. Learn what makes eggs different colors in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the Most Dangerous Air Pollution?

    Mar 28 2018

    The most hazardous air pollution may be particles too tiny to see, but it also may be easily avoided. Learn what researchers have found in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What If Cockroaches Went Extinct?

    Mar 27 2018

    Being surprised by a roach in your kitchen (which is very clean, thank you) can be enough to wish the whole genus would just go away. But what would the world be like if there were no cockroaches? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did Spring Break Get Its Start?

    Mar 26 2018

    College spring break has brought millions of students to Southern beaches and cities to party, but how did this tradition get started? And what are the alternatives? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Losing Sleep Make You Gain Weight?

    Mar 23 2018

    Research indicates that sleep is one of the many factors in how our bodies create, store, and burn fat. We explore (and offer a few tips for getting the most out of your sleep) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens to the Unclaimed Dead?

    Mar 22 2018

    When people die without family, or without identification, their local government lays them to rest. Learn about these fascinating traditions and how they've developed over the centuries in this episode of BrainStuff.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are the Oceans Salty?

    Mar 21 2018

    Seawater is salty because of several quirks in Earth's water cycle. Learn the reasons why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Technology Replace Animal Testing?

    Mar 20 2018

    Trying potential medical treatments on animals was once the best that science could do, but new technologies could make animal testing obsolete. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can We Recycle More, and Smarter?

    Mar 19 2018

    China has long bought waste plastic for recycling from North America and Europe, but their policies are changing. What can we do with a surplus of waste, and how can we make the situation better in the future? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Can We Learn from Fish about Walking?

    Mar 16 2018

    Some fish that strut the seafloor share a common ancestor with humans, so researchers are hoping that studying these fish could help us understand how we walk. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Technology Make Us Worse Drivers?

    Mar 15 2018

    Any high-tech car feature that takes your attention away from the road is a distraction, but are even our automatic safety systems actually making driving more dangerous? We explore in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Boogers Form?

    Mar 14 2018

    Snot is a crucial part of our immune system and sinus health, and boogers are a byproduct of that system. Learn how they form (plus, why eating them might be advantageous) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Mass Shootings Happening in U.S. Schools?

    Mar 13 2018

    Beyond the U.S. gun control debate, another question deserves examination: Why are schools so frequently the sites of mass gun violence in America? We explore the psychology and potential solutions in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Room-Temperature Pizza Safe to Eat?

    Mar 12 2018

    Leftover pizza can be an excellent snack or even a staple -- if it's treated correctly. Learn why refrigerated leftovers are safer than slices left at room temp, plus what toppings hold up best, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is There a Better Alternative to Cash Bail?

    Mar 09 2018

    Cash bail punishes the poor by setting a high price on freedom -- literally. But are there any better alternatives that won't break local governments' budgets? We explore in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Cuttlefish Camouflage Is an Energy-Efficient Superpower

    Mar 08 2018

    Researchers have found that cuttlefish's ability to change their color and texture at will is even more impressive than previously thought. Learn why -- and how technology might copy these abilities -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where Did Middle Names Come From?

    Mar 07 2018

    Having a first, middle, and last name is common in the West, but this wasn't always the case. Learn the history of middle names in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Stars and Planets Nearly Spherical?

    Mar 06 2018

    Planets and stars are basically spheres, but why? We explore the science in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Female Praying Mantises Really Decapitate Mates?

    Mar 06 2018

    The female praying mantis: maneater or misaligned? Learn the science behind this popular semi-myth in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Humans Dream?

    Mar 02 2018

    The human brain is full of mysteries, and why we dream is a big one. Learn the leading theories about why we dream in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Hot Yoga Need to Be So Hot?

    Mar 02 2018

    Do students of hot yoga, who practice at 105 degrees Fahrenheit (40 degrees Celsius), reap more health benefits than room-temperature practitioners? Learn what the research says in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Humans Control Volcanic Eruptions?

    Mar 01 2018

    Spoiler alert: Not yet. But researchers are working on it. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Sea Turtles Are Hatching Up to 99 Percent Female

    Feb 27 2018

    A sea turtle's sex is determined by the temperatures in its hatching site, and global warming is making the Great Barrier Reef warmer than ever before. What could this mean for the future of sea turtles? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are We Getting Lonelier?

    Feb 26 2018

    Experts are divided on whether modern lifestyle factors, like social media use and smaller family units, are leading to greater lonliness. Either way: What can we do about it? We explore in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Human Waste Feed Astronauts?

    Feb 23 2018

    It sounds gross, but stick with us: Researchers are working on recycling astronauts' waste into food for edible stuff. Learn how (and why) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Autonomous Vehicles Break the Speed Limit?

    Feb 22 2018

    In the incredible future, robots may be able to drive your car -- but will they be able to speed? Today's self-driving cars can. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • An Ice Cream that Doesn't Melt

    Feb 21 2018

    Researchers and chefs in Japan have invented an ice cream that doesn't melt on sunny days -- and it's all thanks to deformed strawberries. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Used Books Spread Germs?

    Feb 21 2018

    Libraries are bastions of knowledge -- but are they also bastions of germs? Short answer: Nope! For the long answer, tune in to this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Did Velociraptors Really Hunt in Packs?

    Feb 19 2018

    Did real-life raptors work together they way they do in 'Jurassic Park' movies? Do we even have the right raptors? Learn the leading theories in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can Technology Help Stop Rhino Poachers?

    Feb 16 2018

    A database of rhinoceros DNA is helping catch violent poachers looking to sell rhino horns on the black market. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Magic Mushrooms Help Stop Depression?

    Feb 16 2018

    Although psychadelic drugs are largely recreational these days, scientists are looking into potential therapeutic uses -- especially in patients for whom nothing else works. Learn how psilocybin may fight depression in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can You Be Addicted to Love?

    Feb 15 2018

    Feelings of euphoria leading to obsessive behavior and potentially life-ruining decisions: Love can be as powerful as any drug. Learn how love affects the brain in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Automatic Toilets Waste Water?

    Feb 13 2018

    Automatic-flush toilets are supposed to be more sanitary, but does that come at an environmental price? Learn why phantom flushes happen and what the industry is doing about it in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens to Mardi Gras Beads?

    Feb 12 2018

    Festive beads are key to New Orleans' Mardi Gras celebration, but they're also causing a major headache to the city's sanitation department. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can People Be Allergic to Water?

    Feb 09 2018

    OK, it's not technically an allergy, but yes: People can have extreme skin reactions to water. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Much of the Internet Is Underwater?

    Feb 08 2018

    Undersea internet cables connect continents and transmit virtual tons of data. Amidst concerns that these cables could be sabotaged, digital industry experts weigh in on this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are We in an Insect Armageddon?

    Feb 08 2018

    A recent study found that bug biomass has been steadily decreasing -- in some areas, we may only have 25% of the insects that we had 30 years ago. But what's to blame, and what could this mean for the future? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What on Earth Are Skyquakes?

    Feb 06 2018

    There are plenty of potential reasons for a boom to rumble through the air, but skyquakes don't seem to be attached to any of the usual suspects. Learn more about these mysterious phenomena on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Vegetarians' Farts Smell Worse?

    Feb 05 2018

    Not all flatulence is created equal -- your diet has a huge impact on the gas you pass. So whose farts are smellier: vegetarians or omnivores? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Wine Glasses Getting Bigger?

    Feb 02 2018

    People are drinking more wine than they used to. Could the ever-increasing size of wine glasses be behind this trend? Learn how today's average serving stacks up against history's in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should You Give Cats Milk?

    Feb 01 2018

    Pop culture often shows cats happily sipping saucers of milk, but giving a cat milk isn't actually the best treat for it -- or you. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Which States Get the Most Money from the Federal Government?

    Jan 31 2018

    Due to states' differing taxes and needs, some give the U.S. federal government far more money than they receive, and some receive far more than they pay. Interestingly, this tends to fall along party lines. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Astronauts React to Lunar Landing Conspiracy Theories?

    Jan 30 2018

    Fringe theorists sometimes question whether the 1969 moon landing actually happened. In this episode of BrainStuff, we explore how astronauts Neil Armstrong and Buzz Aldrin have reacted when asked whether it's all a conspiracy. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Drones Replace News Helicopters?

    Jan 29 2018

    Flying robotic drones equipped with cameras are a lot cheaper than helicopters for catching events as they happen. But they do have downsides. Could they really replace news choppers? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Some Fabrics Make Body Odor Worse?

    Jan 26 2018

    Body odor happens when bacteria thrive in our sweat, so the ways your clothes deal with sweat can make a difference. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is the 25th Amendment?

    Jan 25 2018

    With some reports questioning the American president's mental stability, some pundits have asked whether the 25th Amendment might be enacted to remove him. But what does this Amendment say, and what can it really do? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did a Parisian Lemonade Craze Fight the Plague?

    Jan 24 2018

    While the black plague ravaged the rest of France, Paris remained relatively untouched -- and they may have had their fondness for lemonade to thank. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Colonists Dig Up Ice on Mars?

    Jan 24 2018

    Spoiler Alert: Yes. Researchers have found nearly pure water ice just below the surface of Mars, in regions easy to reach by human explorers or colonists. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can the Speed of Video Make Us Look More Innocent or Guilty?

    Jan 22 2018

    Slow-motion video is often used to show jurors how a possibly criminal event took place, but is this practice fair to the accused? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Animal Has the Best Echolocation Abilities?

    Jan 19 2018

    Bats, dolphins, and other animals all use sonar to navigate, but the narwhal has them all beat, and it's thanks to narwhals' distinctive horns. Learn how in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Anxiety Cause Underarm Sweat?

    Jan 18 2018

    Anxiety can cause sweaty palms and armpits -- but why? And how can you combat it? Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Do (and Don't) We Know About the Pentagon's UFO Program?

    Jan 18 2018

    Over the years, the U.S. government has funded several programs that investigate alleged UFO sightings. How much does the public know about what they found? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Green Is Your Favorite Superhero?

    Jan 16 2018

    To draw attention to the average citizen's carbon footprint, a team of researchers calculated the eco-rating of a number of superheroes. Learn how they rank in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Doesn't Airline Food Taste Good?

    Jan 15 2018

    If you've ever noticed that airplane food is a little lackluster, the recipe isn't necessarily to blame. Learn how a plane's altitude and even engine noise can affect flavors in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Does Self-Defense Insurance Protect Gun Owners Against?

    Jan 12 2018

    Several organizations now offer insurance policies to gun owners who may fire in self-defense, to help with legal decisions and fees. But how does this affect the gun control debate? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could You Legally Bury Someone in Your Backyard?

    Jan 12 2018

    Home burials are largely a thing of the past, but they're perfectly legal in most states -- once you check a few boxes. Learn how home burials work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Bats Jam Each Other's Sonar?

    Jan 10 2018

    Bats use sonar to find food in the dark -- but they've got a lot of competition from other bats. Learn about echolocation and how bats go on the offensive in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Tech Will Replace the Smartphone?

    Jan 09 2018

    Although it's an integral part of many people's lives today, the smartphone is bound to be replaced by the next big thing (and probably sooner than later). We explore what (and when) that might be. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Did the Genes for Light Skin Colors Evolve in Europe?

    Jan 08 2018

    A widescale genetic survey has shown that despite common misconceptions, race really is only skin deep. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Much Can Ice Tell Us About Climate Change?

    Jan 05 2018

    Ice cores from glaciers are like fossils of ancient Earth's weather patterns. Tune in to learn how one such sample from Tibet may hold an important history lesson. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Teens Cyberbullying Themselves?

    Jan 04 2018

    A new study indicates that some teens bully themselves online, posting hateful messages from fake or anonymous accounts. Researchers are looking into why, and how to help. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Some Microbes Live on Air Alone?

    Jan 03 2018

    Researchers have found Antarctic microbes that appear to get all the nutrients they need from thin air. Could this change our search for extraterrestrial life? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Similar Is the Opioid Epidemic to the Crack Epidemic?

    Jan 02 2018

    The War on Drugs being waged against opioids is very different than the one that was fought against crack. Learn more about the politics of race and addiction in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Resolutions So Easy to Break?

    Jan 01 2018

    Most of us break our New Years resolutions — and researchers have found a few reasons why. Learn how to build a better resolution with this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should Amazon Be Considered a Monopoly?

    Dec 29 2017

    Although it doesn’t fall into our traditional definition of a monopoly, some researchers argue that Amazon’s scope calls for a new definition. Learn why in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could This Newly Discovered Planet Harbor Life?

    Dec 28 2017

    An Earth-sized planet only 11 light years away might have the right conditions to sustain life as we know it, despite its star having some strange qualities. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Long Have We Been Keeping Dogs on Leashes?

    Dec 27 2017

    A new find of very old artwork depicts dogs wearing leashes. Learn more about our history with man’s best friend in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Much Cardboard Does Online Shipping Use?

    Dec 26 2017

    Online shipping is highly convenient, and it’s changing the way we use cardboard — but not necessarily for the worse. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • The Tale of the Christmas Truce

    Dec 25 2017

    What was the Christmas Truce? Tune in to learn the story behind this small miracle from the Great War. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Can a Cache of Pterosaur Eggs Teach Us?

    Dec 22 2017

    A huge cache of ancient pterosaur eggs has been unearthed in China. Learn what this find can tell us about these flying contemporaries of dinosaurs in this epiosde of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could You Outrun a Volcano?

    Dec 21 2017

    Outrunning a volcanic eruption, like many things that look easy in movies or sound simple in theory, is more complicated in reality. Learn why you shouldn't attempt this feat in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will Bitcoin Remain the Biggest Cryptocurrency?

    Dec 20 2017

    Bitcoin's booming value has everyone excited, but some financial experts are putting their money on other cryptocurrencies. Learn about the potential future of Bitcoin in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is There a Real Witches' Curse in Shakespeare's 'Macbeth'?

    Dec 19 2017

    You may have heard that the Bard's tragedy "Macbeth" is cursed. Learn how this superstition came about in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • There's Another Reason to Not Eat Raw Cookie Dough

    Dec 18 2017

    Recent research has revealed another danger lurking in uncooked dough: tenacious E. coli can survive in dry flour. Learn how scientists figured it out in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Can't Some People Sleep Without a Fan?

    Dec 15 2017

    Some people find it impossible to sleep without background noise, like a fan whirring. Researchers have identified the possible culprit. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do People Get Adult-Onset Food Allergies?

    Dec 14 2017

    New research indicates that adult-onset food allergies are more common than previously thought. But why do they happen? Learn more on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do We Need to Redefine the Four Seasons?

    Dec 13 2017

    As climate change affects the planet's weather patterns, some parts of the world will see the seasons bleed together. Tune in to learn how we define the seasons now, and how some researchers think that should change. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Did Giant Crabs Eat Amelia Earhart?

    Dec 12 2017

    No, really, it's a serious question. In this episode, learn why -- and how -- researchers have investigated giant land crabs' potential role in the famous pilot's ultimate demise. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Much Does Getting Stuck in Traffic Cost Us?

    Dec 11 2017

    When you add up all the wasted time and gasoline, traffic hotspots cost drivers billions of dollars. Learn how researchers are using technology to measure the problem -- and hopefully make it better. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Fast Can We Take a Picture of the Entire Sky?

    Dec 08 2017

    A new robotic camera is set to change what we know about outer space by capturing huge images of the night sky. Learn more on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Find Symmetry So Pleasing?

    Dec 07 2017

    What is it about the arrangement of petals on a flower or a perfectly symmetrical display of soup cans that catches our eye? Our brains seem wired for it, but why? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Salt Prevent Food Spoilage?

    Dec 06 2017

    Salt has kept entire civilizations alive thanks to its abilities to preserve food and protect it from harmful germs. But how? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Monkeys Have Superstitions?

    Dec 05 2017

    We share a lot in common with monkeys, but are they just as superstitious? And could the belief in winning streaks carry an evolutionary advantage? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is (and Isn't) Terrorism?

    Dec 04 2017

    When is -- and isn't -- a crime considered terrorism? The legal, political and moral definitions are often at odds. We explore why on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Leaf Blowers So Irritating?

    Dec 01 2017

    If the sound of leaf blowers makes you angry, you're not alone -- and there's science behind why. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Pretending To Be Batman Helps Kids Focus

    Nov 30 2017

    The Batman Effect, as researchers have dubbed it, allows kids to separate themselves from temptation and stay on task. Learn more on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Tips For Staying Safe In A Mass Shooting

    Nov 29 2017

    We don't expect to ever be in a mass shooting, but assuming the worst can happen is the first step to being prepared. Find out more on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Second Breakfasts Can Be Good For You

    Nov 28 2017

    A second breakfast can be just as beneficial as a first breakfast. Find out why on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Jellyfish Are Brainless, But Still Sleepy

    Nov 27 2017

    Do jellyfish sleep? Learn more about a new study on the need for sleep in animals, and in jellyfish, in this BrainStuff episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's a Bump Fire Stock Do To A Gun?

    Nov 24 2017

    Bump fire stocks enable a shooter like Las Vegas killer Steven Paddock to fire a semi-automatic rifle at nearly the rate of an automatic. How do they work? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • The Origins of Boston and New York’s Accents

    Nov 23 2017

    What does Boston have against the letter 'R'? BrainStuff digs into the origins of 2 American accents. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • The Number Zero Might Be Older Than We Thought

    Nov 17 2017

    A new analysis of the ancient Indian Bakhshali manuscript suggests the numerical symbol zero, as we use it today, may be centuries older than previously believed. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Squirrels Organize Their Nuts?

    Nov 17 2017

    A new study suggests squirrels use memory strategies to remember where they put the good nuts. Find out more on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can You Pass A Drug Test With Someone Else's Urine?

    Nov 17 2017

    Have you ever tried to beat a drug test? OR Labs are usually able to bust people using someone else's urine. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Albums Aren't Dead

    Nov 16 2017

    Do you buy vinyl records? OR Do you still listen to music albums? In which format? Find out how vinyl and streaming complement each other. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Great Archaic Ways To Insult Someone

    Nov 15 2017

    Kim Jong-un called Donald Trump a dotard. Here are some equally entertaining out-of-date options the 45th president could've thrown back in his face. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Wolves Are Smarter Than Dogs?

    Nov 15 2017

    A new study put dogs and wolves head to head in the intelligence department. Guess which species won? Find out on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What can we learn about ourselves from epic space missions?

    Nov 14 2017

    Now that Cassini has met its end by plunging into Saturn, it's time to reflect on what we've learned over the decades. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Less people are killed by lightning every year

    Nov 13 2017

    In the 1940s and '50s, lightning strikes killed hundreds of Americans each year. Now, that number's dropped to only a few dozen. What's changed? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Balloons Stick To Our Hair?

    Nov 10 2017

    It's a hair-raising experience. BrainStuff explains the secrets of static electricity. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Neanderthals Used Glue

    Nov 09 2017

    Neanderthals distilled tar more than 100,000 years before modern humans created glue; archaeologists compared three potential ways this ancient tech was used. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Getting a Doctorate Can Affect Your Mental Health

    Nov 08 2017

    A new study shows doctoral programs can incite some serious psychiatric problems. Learn how getting a Ph.D. affects mental health on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is the Caspian Sea Evaporating?

    Nov 01 2017

    The largest lake in the world is gradually shrinking thanks to a changing climate, and beach towns could become landlocked. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • There Was a Brutal Prehistoric "Hell Ant"

    Oct 31 2017

    Instead of a mouth, the hell ant had blades and a metal horn. Learn more about this prehistoric creature on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Which Computer Keys Wear Out First?

    Oct 31 2017

    As casual computer users shift to touchscreens, wear patterns on computer keyboards have evolved, affecting suppliers of replacement letters. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Ruined City Under Tunisia's Waters

    Oct 30 2017

    Archaeologists discovered what they believe to be ruins of the Roman city of Neapolis — underwater near Tunisia. Find out more on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Do Hurricane Categories Mean?

    Oct 30 2017

    Hurricanes are the strongest storms on the planet. Learn more about how we categorize them from BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is a Brain-Shaped Blob In Canada?

    Oct 27 2017

    The magnificent bryozoan is a colonial organism that lives in warm ponds and lakes usually east of the Mississippi River. So what's it doing in western Canada? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the Best Way To Park?

    Oct 27 2017

    Do people who back their cars into parking spaces slow down the flow? Or are they the smartest in the lot? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Orange Peels Can Revive Landscapes

    Oct 26 2017

    Decades after a company dumped truckloads of orange peels onto a degraded plot of land, the pasture is flourishing. Learn more on BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Voyager 1 is Traveling Through Interstellar Space

    Oct 26 2017

    NASA's Voyager 1 spacecraft is celebrating its 40th year in space this year. Learn more about its journey on this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Researchers Preserve Smells?

    Oct 25 2017

    Scents affect how we experience different culures and places, and researchers believe they have historical value. So, how are we preserving them? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did Plesiosaurs Use Their Flippers to Swim?

    Oct 24 2017

    A recent study suggests that these aquatic reptiles used all of their flippers to move efficiently underwater. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • The Mysteries Behind Abandoned Ships

    Oct 23 2017

    Have you ever heard about ships that wash up on shores under strange circumstances and without a crew? Learn about abandoned ships on this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Floating Fire Ant Rafts Are Both Dangerous and Cool

    Oct 20 2017

    Learn about the dangers of floating fire ant colony rafts on this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Did The T. Rex Have Tiny Little Arms?

    Oct 19 2017

    Tyrannosaurus rex was a giant predator that roamed the earth, so why did it have such tiny arms? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Not Having A Job Better Than A Bad Job?

    Oct 18 2017

    Unemployment has negative health effects, but having a bad job can cause stress that's detrimental to well-being. Learn more in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do We Need Treatment Centers For Internet Addiction?

    Oct 17 2017

    Internet addiction is classified as an epidemic in some Asian countries, but not in the U.S. This episode of BrainStuff looks at internet addiction treatment centers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did a Dinosaur Killing Asteroid Change The Environment?

    Oct 16 2017

    A new model describes in more detail how the Chicxulub asteroid affected our planet, from dropping temperatures to pausing photosynthesis, with soot playing an integral part. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • When Can You Use The Emergency Lane?

    Oct 13 2017

    That driver who uses the highway shoulder in bad traffic could face penalties. Learn when driving in the emergency lane is legal in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do People Walk In Predictable Paths?

    Oct 12 2017

    What guides the direction a person chooses to move? Learn about what habit and handedness have to do with it in this BrainStuff episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How 'Fido' Became The Name For A Dog

    Oct 11 2017

    Why is Fido shorthand for a friendly dog? Learn more about the origins of the dog name Fido in this BrainStuff episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Did The Grandfather Clock Get Its Name?

    Oct 10 2017

    In this episode, we’ll look at the history behind how the grandfather clock got its name — and it's probably not what you expect. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • When is it Safe to Eat Raw Oysters?

    Oct 09 2017

    In this episode, BrainStuff looks at if there's any truth behind the old wives' tale that you can't eat oysters in months without the letter 'R.' Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Gut Bacteria Could Become Your Next Sports Drink

    Oct 04 2017

    Do microbes inside our body have their own circadian rhythms? Learn more about the gut microbiome and circadian rhythms in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Einstein's Right Again

    Oct 02 2017

    Astronomers have detected hints of Einstein's general relativity in the Milky Way's supermassive black hole. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Defining Personal Space

    Sep 27 2017

    How close is too close? In this episode, BrainStuff looks at personal space around the world. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Swift Lizard Evolution

    Sep 25 2017

    Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should You Eat A 106-Year-Old Fruitcake?

    Sep 20 2017

    What relics of South Pole expeditions have turned up? Learn more about Robert Falcon Scott's Antarctic fruitcake in this BrainStuff episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Goldfish Make Their Own Alcohol

    Sep 18 2017

    How do goldfish survive in icy lakes and your poorly cleaned aquarium? Learn more about goldfish and alcohol on this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Separating Ninja Facts From Ninja Fiction

    Sep 13 2017

    A new ninja research center opened in Japan. This episode looks at the myth of the ninja and what the research center hopes to solve and study. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can NASA Hit An Asteroid with a DART?

    Sep 11 2017

    In 2022, NASA is planning on ramming a spacecraft into an asteroid to knock it off course. Learn more about the DART mission on this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Millennials Buy Homes For Their Dogs

    Sep 06 2017

    Millennials are buying real estate, but not for reasons you'd expect. A third of them say they bought their house for their dog. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Many People Take and Misuse Prescription Opioids?

    Sep 05 2017

    For the first time in our history, more adults are dying from overdoses than from car accidents or gun violence. New statistics shine a light on the reasons behind the tragic trend. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Friday the 13th Considered Unlucky?

    Aug 30 2017

    In countries like the United States, people have a superstitious fear of one particular date: Friday the 13th. But why? In this episode, Christian discusses the two main fears that have fueled the Friday the 13th superstitions, as well as their origins. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Have Eyebrows?

    Aug 28 2017

    Eyebrows are prominent human features, but what purpose do they serve? Scientists think they help keep stuff out of our eyes and aid in nonverbal communication, among other things. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Can't We Breathe Underwater?

    Aug 23 2017

    Water is made up of hydrogen and oxygen, so why aren't we able to breathe underwater? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Chocolate Poisonous To Dogs?

    Aug 21 2017

    Under the right conditions, chocolate can indeed be deadly for dogs. Tune in to learn more about the compound in chocolate that makes it dangerous for dogs (and how much is too much) in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are There 60 Minutes In An Hour Instead of 100?

    Aug 16 2017

    Do clocks really follow a system inherited from ancient Sumeria? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is Dry Ice Dangerous?

    Aug 14 2017

    Dry ice is different from regular ice in several ways. Find out what makes dry ice so unique, along with why it can be dangerous, on this week's episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is Dry Cleaning Actually Wet?

    Aug 09 2017

    Spoiler Alert: No, dry cleaning isn't dry. Instead, it uses a petroleum solvent in place of water. Learn more about dry cleaning in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is It Painful To Bite Aluminum Foil?

    Aug 07 2017

    When (dental) metal in your mouth comes in contact with aluminum foil, your teeth get a painful shock from the electricity produced. Christian Sager explains how the voltaic effect plays out in your mouth in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Some People Immune To Mosquitoes?

    Aug 02 2017

    Ugh. Mosquitoes, right? They’re the worst. They pester everyone… or do they? Tune in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are Sea Monkeys?

    Aug 01 2017

    Sea Monkeys are a type of brine shrimp. These shrimp create remarkably resilient eggs called cysts. Check out this BrainStuff episode and learn more about the secret behind Sea Monkeys. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the Best Place To Sit In A Movie Theater?

    Jul 26 2017

    When it comes to where you should sit in a movie theater to get the best experience, it's mostly a matter of preference. Except when it comes to sound. Find out why -- and where you should sit -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the Birthday Paradox?

    Jul 24 2017

    The so-called Birthday Paradox isn't a true paradox -- it's a fascinating example of how bad humans are at off-the-cuff probability. Tune in to learn what the Birthday Paradox is and how it works. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Fuel Efficient Is An Airplane?

    Jul 20 2017

    How much fuel does a 747 need to complete an international flight? How efficient are these aircraft? Join Christian as he asks how much fuel an international flight actually uses. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are You Farting?

    Jul 17 2017

    Sure, flatulence is embarrassing. But why do we do it? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where Do Bullets Go When Fired Into The Air?

    Jul 12 2017

    When people fire guns into the air in a celebratory manner, those bullets have to go somewhere. Find out how high fired bullets can go -- and why they can be dangerous -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Water Go Bad?

    Jul 10 2017

    Many people store water for emergencies -- but is it true that water sitting for too long will go bad? Listen in as Christian explains it for you. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do People Talk Weird in Old Movies?

    Jul 05 2017

    It’s not quite British, and it’s not quite American – so what gives? Why do all those actors of yesteryear have such a distinct and strange accent? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is Blood Red?

    Jul 03 2017

    Blood is always red... even when it's inside your body. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Anxiety Work?

    Jun 28 2017

    Anxiety is a normal, healthy response for the human body. But when it interferes with daily life it can become a disorder. We investigate anxiety's symptoms and biochemistry to learn how it can become irrational... and how you treat it. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Animals Predict Natural Disasters?

    Jun 26 2017

    Do animals have a sixth sense that can detect earthquakes and tsunamis? Or do they just make better use of their other senses than humans? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Don't All Skeletons Become Fossils?

    Jun 21 2017

    Skeletons of ancient animals sometimes become fossilized. But if this happened to every animal that ever lived, wouldn’t we be swimming in a sea of fossils right now? BrainStuff explains why only a fraction of animal bones turn into fossils. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does TV Resolution Matter?

    Jun 19 2017

    You’ve heard all the hype about high-definition TV, ultra-high definition and more. But does this mad race to jam more pixels on a screen actually matter? Tune in to learn more about the human eye and digital resolution. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's The Most Expensive Book In The World?

    Jun 14 2017

    Sometimes super-wealthy people like to spend millions on a single book. Which one cost the most? Hint: It’s about water and it's written backwards. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Will You Most Likely Die?

    Jun 12 2017

    Death is the most mysterious and inevitable part of the human experience. But how will we go? Christian takes a closer look at the most common causes of death across the globe. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Did the Brontosaurus Exist?

    Jun 08 2017

    The Brontosaurus technically hasn't existed in the living/breathing sense of the word for 150 million years. But did it ever exist? Was this iconic dinosaur the result of misclassification? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is Bird Poop White?

    Jun 05 2017

    Bird poop: It’s the bane of cars, statues, awnings and occasional hapless pedestrians across the world. But what is this stuff anyway? Why does it look so unnatural? Why is it white? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Your Eyes Pop Out Of Your Head When You Sneeze?

    May 31 2017

    You’ve heard that if you can keep your eyes open during a sneeze, you’ll be rewarded with the sensation of both eyeballs popping out of their sockets. Is that true? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Crowds Can Kill You

    May 29 2017

    People mean well, but in high-density situations we begin to risk our safety. Learn how a crowd can turn into a deadly disaster. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Agoraphobia Work?

    May 24 2017

    Agoraphobia is a complicated and difficult psychological condition that is easily misunderstood. Learn about life with agoraphobia in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Fire Extinguishers Work?

    May 22 2017

    Fire extinguishers are nearly ubiquitous, and they can be an invaluable, life-saving device. But what’s inside those little red cylinders, and how does it stop a fire? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Juice Cleanses Work?

    May 17 2017

    Juice cleanses are all the rage. But do they actually provide any health benefits? Christian explains. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is The Dwarf Planet Ceres?

    May 15 2017

    What Is The Dwarf Planet Ceres? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Coffee Make You Have To Poop?

    May 10 2017

    Christian explains why coffee makes many people have to go to the bathroom. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does The Placebo Effect Work?

    May 08 2017

    A placebo is a phony drug used to test the efficacy of real drugs in clinical trials… but here’s the weird part. Sometimes, placebos can make patients better. How? Why? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Antiperspirants Work?

    May 03 2017

    Every day, millions of people safeguard themselves against excessive sweat with a quick roll of antiperspirant. But what does this stuff do, exactly? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can You Reach The End of a Rainbow?

    May 01 2017

    The end of the rainbow may be the best place to raid a leprechaun stash, but it proves a strangely difficult destination to reach. Christian explains why you can’t get there, and why there really isn’t even a a “there” there. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Some People Afraid of Clowns?

    Apr 26 2017

    Clowns are usually brightly-colored, goofy, raucous characters designed to be the life of any party. However, it’s no secret that they’re not universally adored. In fact, some people find clowns downright frightening. But why? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is a "Dog Year" Really 7 Years?

    Apr 24 2017

    You may have heard that dogs age differently than humans. But is it true? Get the facts on your pooch without having that ever-awkward “so… how old are you really?” conversation. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Jet Lag Work?

    Apr 19 2017

    Yeah, your sleeping pattern gets screwy when you fly to different time zones. But what are the symptoms of jet lag? What causes it? And how can you remedy it? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does The Shower Get Hot When The Toilet Is Flushed?

    Apr 17 2017

    Were you burned the last time someone flushed the toilet while you were showering? It's a simple plumbing fix. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do You Find Water In The Wild?

    Apr 12 2017

    In case you ever get stranded in the wild without an obvious source of fresh water, here are a few things you can do to collect some. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Are Eye Boogers?

    Apr 10 2017

    The gunk builds up at the inner corners of our eyes is residue of the stuff the coats and protects our eyeballs all the time. Learn what it’s made of and why it turns to sand overnight. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Get Morning Breath?

    Apr 05 2017

    Every morning we wake up with bad breath. What does bacteria and a lack of saliva have to do with it? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Animals Laugh?

    Apr 03 2017

    It’s no secret that some animal species are highly intelligent – but do they also “get” jokes? Can they laugh? Are laughter and intelligence even related? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Much Does It Cost To Run For President?

    Mar 29 2017

    There’s a big difference between running for President and actually winning the election. So how much money will you need to have a decent shot at being Commander-in-Chief? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can I See the Stuff Astronauts Left On the Moon?

    Mar 27 2017

    Astronauts left over a hundred items on the moon's surface. But are today's telescopes powerful enough to see what's there? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Would Space Do To The Human Body?

    Mar 22 2017

    Space without a suit? You’ll probably die from the lack of pressure in a vacuum. But other extreme hazards won’t help either. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does "Power Dressing" Actually Work?

    Mar 20 2017

    Dressing up to feel powerful may have been a fashion fad of the 1980s, but do we still think differently if we wear formal clothes? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Dirty Is Soap?

    Mar 15 2017

    It’s good hygiene to wash your hands after touching shared bathroom surfaces. But bars of soap are a shared surface. Does soap really help get you clean? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Hair Dye Work?

    Mar 13 2017

    Some hair dyes are basically fine-grained paint. But dyes that stick with you for more than a couple weeks physically and chemically change each hair. Learn how with Christian Sager. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Tattoo Machines Work?

    Mar 08 2017

    Tattoo machines (sometimes called guns) haven’t changed much since the 1890s because they’re such elegant devices. Tune in to learn how the most common types work. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could Alien Life Exist?

    Mar 06 2017

    What makes a planet ideal for sustaining life? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does the Human Body Really Replace Itself Every 7 Years?

    Mar 01 2017

    The short answer is “no.” Tune in to learn how long it really takes, plus how nuclear weapons led scientists to the solution. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Plants Conscious?

    Feb 27 2017

    Scientists have found evidence that plants have senses, memories, and can even communicate with each other. But does this mean they're conscious? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are There So Many Different Kinds of Milk?

    Feb 22 2017

    Christian explains the difference between common types of milk, looking at calories, fat and the rest of their composition. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens When You Get Ringing In Your Ears?

    Feb 20 2017

    Tinnitus is what makes your ears ring after a loud noise. And it's really annoying. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Get Brain Freeze?

    Feb 15 2017

    We all know what an ice cream headache feels like. Christian's here to explain why they happen. It involves temperature (duh), nerves and lots of blood. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is Synesthesia?

    Feb 13 2017

    It’s true – some people hear colors, or taste words. But what produces synesthesia? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is It So Difficult To Chug A Gallon of Milk?

    Feb 08 2017

    It's one of the strangest - and potentially grossest - challenges out there. But what happens when you drink milk? Why does it make you throw up? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Vocal Fry Work?

    Feb 07 2017

    You’ve probably heard people complaining about vocal fry, and you’ve certainly heard it used in conversation, but what causes it? Christian explains the science of fry and creak in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Aspirin Work?

    Feb 01 2017

    How does aspirin target your pain? The plants that aspirin were derived from have been used as medicine for about 6000 years, we finally discovered how it works in 1971, and Christian explains it to you now. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Long Would It Take To Walk Around The World?

    Jan 30 2017

    Christian explains what goes into calculating how long it would take to traverse the globe on foot, and tells us about some intrepid explorers who've tried to do it. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Déjà vu Work?

    Jan 25 2017

    Ever gotten the strange feeling that you’re repeating an experience? Researchers have over 40 theories about what’s going on in the brain during déjà vu, and Christian is here to explain the most popular ones. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Crooke's Radiometer Work?

    Jan 23 2017

    Christian explains the science behind this seemingly magical gizmo. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What the Heck is GDP?

    Jan 18 2017

    GDP, GNP – what does it all mean? Jonathan explains what economists mean when they bring up these common economic indicators. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Determines Your Hair Color?

    Jan 16 2017

    There's a lot of natural variation in the color of human hair. What's the physical explanation for the difference? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Is Bacon Considered A Breakfast Food?

    Jan 11 2017

    Sure, everyone knows that bacon and eggs are a traditional breakfast - but why? Listen in to learn how Freud's nephew invented PR and changed the way America eats breakfast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Are Brain Orgasms And ASMR Whisperers?

    Jan 09 2017

    Christian delves into the euphoric sensations of the Autonomous Sensory Meridian Response (ASMR) and reveals what triggers it and how science has responded so far. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • The Way We Think About Sugar Is Going To Change

    Jan 05 2017

    The FDA recently changed their Nutrition Facts label to include added sugars. But why? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Erasers Erase?

    Jan 02 2017

    Erasers lift our mistakes right off the page, but it's not magic - it's the microscopic physics of stickiness. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Some People Faint At The Sight of Blood?

    Dec 28 2016

    Christian explains the science of why people faint at the sight of blood. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Crosswalk and "Close Door" Buttons Really Do Anything?

    Dec 26 2016

    Are the buttons we push to cross streets, close elevator doors, and nudge the office thermostat really connected to anything? Some aren’t! Learn how these placebo buttons (don’t) work. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Is An Autopsy Performed?

    Dec 21 2016

    When you need someone to exam a corpse to determine a cause of death, how do they conduct the autopsy? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Helicopter Blades Look Weird On Video?

    Dec 19 2016

    Helicopter blades and other fast spinning objects often produce strange effects on camera. Christian explains why. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is American Cheese Really Made Of?

    Dec 14 2016

    Processed American cheese is super cheap, consistent, shelf-stable, and orange. Christian explains how this science cheese is made. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Dogs Tilt Their Heads?

    Dec 12 2016

    Is this adorable behavior rooted in sensory necessity or purposeful gesticulation? We explore what may be the cutest research ever. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do So Many Price Tags End in .99?

    Dec 07 2016

    It’s very common to see the number 9 at the right end of a price tag. Why is this? Christian explains the psychology of prices and nines in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Movie Theaters Sell Popcorn?

    Dec 05 2016

    For millions of moviegoers, the idea of visiting the local theater automatically conjures memories of popcorn. But this wasn’t always the case – so why, out of all snacks, did popcorn become the #1 snack for film? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Lucid Dreaming Work?

    Nov 30 2016

    Science has proven that we can be aware of our dreams while we’re in them. But can we control our dreams? Christian breaks it to you gently. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Satanism?

    Nov 28 2016

    Just the term "satanism" is controversial. But what's actually going on with this counter-culture religion that values individualism and nonconformity? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Itch?

    Nov 23 2016

    Virtually everyone has experienced an itch at one time or another – but what is an itch exactly? What causes it, and why can having one be such a maddening experience? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Microwave Ovens Work?

    Nov 21 2016

    They’re convenient, ubiquitous and easy to use. But how do these things work, exactly? What do people mean when they say a microwave cooks food inside out? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Dogs Yawn?

    Nov 16 2016

    Dogs communicate by yawning, and it's complex to figure out what they might mean. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is WiFi Safe?

    Nov 14 2016

    You've probably heard that wireless internet (WiFi) is dangerous. But is it true? Christian breaks it down. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the ideal temperature for your refrigerator?

    Nov 09 2016

    In this episode, Christian explains how bacteria spoils food and what temperature your refrigerator should be to slow their progress. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do some noises drive me crazy?

    Nov 07 2016

    Do you want to strangle people for chewing gum? Does the crinkle of plastic fill you with inarticulate, homicidal fury? If so, you may suffer from the little-understood condition called 'misophonia'. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do one-way mirrors work?

    Nov 02 2016

    How can a single piece of glass look like a mirror from one side but a window from the other? It's not magic, it's materials technology. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will Soda Really Ruin My Teeth?

    Oct 31 2016

    If your teeth are one of the hardest parts of your body, then how could soda damage them? Tune in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Fluorescent Lights Make That Buzzing Noise?

    Oct 26 2016

    Bzzzzzzzzzzzzzzzzz Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Stupid People More Confident?

    Oct 24 2016

    We've all heard about the supposed relationship between confidence and knowledge - but is it true? Two researchers think they've found the answer. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Saliva Work?

    Oct 19 2016

    Your saliva makes things taste great while killing bacteria and helping digestion. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Causes Red Eye In Photos?

    Oct 17 2016

    How can a camera's flash make your eyes glow red? Tune in to learn how it works -- and how to prevent it. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Men Have Deeper Voices?

    Oct 12 2016

    Christian explains why male humans' voices generally get lower than female humans' during puberty. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Are Honey Bees Disappearing?

    Oct 10 2016

    Honey bees are vanishing? But why? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do TV Ratings Work?

    Oct 05 2016

    The future of your favorite TV shows hinges on their ratings – but what is a rating, and where does it come from? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Car Horns Work?

    Oct 03 2016

    The next time you honk your car horn at that jerk who cut you off, you’ll understand how it uses physics to get the job done. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is Russia's "Dead Hand?"

    Sep 27 2016

    We’ve all seen movies with supervillains building catastrophic Doomsday devices – but has anyone ever built a real one? Join Christian to learn how the Cold War led to the most dangerous nuclear system in history: Russia’s legendary – and terrifying – Dead Hand. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Causes the Northern Lights?

    Sep 26 2016

    There are many misconceptions about what causes the Aurora Borealis when it really requires solar winds, magnetic fields and excited atmospheric gases. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is White Noise?

    Sep 21 2016

    Christian defines what white noise actually is and how it's used to mask other annoying sounds. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Supplemental Vitamins Actually Work?

    Sep 19 2016

    A vitamin a day keeps you healthy to play. Or does it? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Night Vision Work?

    Sep 14 2016

    For the vast majority of international travelers, a passport is a necessity. But why? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do I Need A Passport To Travel?

    Sep 12 2016

    For the vast majority of international travelers, a passport is a necessity. But why? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Bed Bugs Work?

    Sep 07 2016

    These insects live in your bedroom, drink your blood and stain your sheets. How do you get rid of them? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What If The Moon Disappeared?

    Sep 05 2016

    Without the moon, how would Earth's environment be affected? Would we survive? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is "Ranch" Flavor?

    Aug 31 2016

    A plumber in Alaska invented a bizarre condiment that launched a multimillion dollar industry, and today ranch is the most popular salad dressing in the US. But what exactly is this stuff? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is Fracking?

    Aug 29 2016

    You’ve heard of fracking, and you’re pretty sure lots of people don’t like it, but do you know how it actually works? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • The Science of Glow Sticks

    Aug 24 2016

    What do fireflies, TVs, neon signs, and glowsticks have in common? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Your Name Determine Your Future?

    Aug 22 2016

    How much does your name actually matter? Are some names going to make you rich, while others make you poor? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens When I Have A Hangover?

    Aug 17 2016

    If you've ever had a few too many beers at a party, then you've probably encountered the symptoms of a hangover -- the pulsing headache, dry mouth, nausea and more. But what's actually happening to you? And what is it about alcohol that can turn a wonderful Saturday night into an agonizing Sunday morning? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Laugh Tracks Work?

    Aug 15 2016

    Sitcoms use laugh tracks all the time. But where do they come from? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do You Hate the Sound of Your Own Voice?

    Aug 10 2016

    The recorded sound of your voice usually makes you cringe because of two ways vibrations reach your ear. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Air Force One Work?

    Aug 08 2016

    When the President travels the friendly skies, he does it in style. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Marijuana Affect Your Memory?

    Aug 03 2016

    People who smoke pot have a reputation for being forgetful or absentminded. But what's the real science behind this? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do We Know What Dinosaurs Looked Like?

    Aug 01 2016

    Can we really reconstruct a dinosaur’s appearance from a bunch of million-year-old fossils? How? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Eating Before Bed Give You Nightmares?

    Jul 27 2016

    Why do some foods affect our dreams? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do Men Have Nipples?

    Jul 25 2016

    Men don’t usually lactate – but they can! Christian explores how breast tissue develops in human embryos of both sexes, and explains why mice are more advanced, evolution-wise. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Does Gasoline Smell So Good?

    Jul 20 2016

    Some people sense a sweet, euphoric odor when pumping gas into their car. Why is that? And is it hazardous? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Is The Oldest Living Thing?

    Jul 18 2016

    From eldritch aspen colonies to immortal jellyfish, the world is lousy with long-lived organisms. But what’s the oldest? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Sleep?

    Jul 13 2016

    Sleeping is frustrating for many of us. So why do we have to do it? Christian reviews several possibilities and reveals all the bad things that can happen if you sleep too much... or not at all. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Captain America's Shield Work?

    Jul 11 2016

    Let's take a look at the fictional history of Captain America's indestructible shield and try to figure out how it might have been forged and how aerodynamic it could be. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Sleepwalking Work?

    Jul 06 2016

    Have you ever walked in your sleep? Somnambulism isn't as rare as you might think. Join Christian as he explores the facts and fiction about sleepwalking, from its many possible causes to whether you can safely wake up a somnambulist mid-stroll. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Shouldn't I Rob A Bank?

    Jul 04 2016

    Robbing a bank is a dumb idea. And not just because it's illegal. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can Absinthe Make You Hallucinate?

    Jun 29 2016

    Absinthe has a dangerous reputation. But will you really meet The Green Fairy if you drink it? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Don't Humans Have Tails?

    Jun 27 2016

    Whether they’re swatting away horseflies or helping a monkey swing through the forest, tails are a pretty amazing adaptation. So why don’t humans have them? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where Is The Biggest Garbage Dump On Earth?

    Jun 22 2016

    Even though 80% of trash starts on land, tons of it ends up in the ocean, swirling around in a massive patch of plastic debris. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do You Really Need To Wash Your Jeans?

    Jun 20 2016

    You might have heard this odd advice from fashion gurus before – “don’t wash your jeans!” But why? Is it real advice, or just a prank pulled on unsuspecting, dim-witted denim rubes? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do People Go Bald?

    Jun 15 2016

    For most men, losing your hair is an inevitable side effect of aging. Christian describes the growth cycle of hair, types of baldness that affect men and women, and how most ladies feel about bald dudes. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Humans Still Evolving?

    Jun 13 2016

    We may not have mutant powers like the X-Men, but natural selection is still changing humanity… for the better. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Can't You Tickle Yourself?

    Jun 08 2016

    It’s almost impossible to trick your brain so you can tickle yourself. Unless you're schizophrenic… Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are Pop Rocks Dangeorus?

    Jun 06 2016

    Did Pop Rocks really blow the door off of a delivery van? Has anyone ever died from eating these popping bits of sugar? The answers might surprise you. Join Christian as he looks into the truth behind the rumors surrounding the uniquely (and surprisingly loud) candy called Pop Rocks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does Hypnosis Actually Work?

    Jun 01 2016

    We see hypnosis in movies and TV all the time – after a few swings of a watch, some poor sap starts clucking like a chicken or crying like a baby – but is there any truth to this? Can you actually hypnotize someone? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Do We Get Bags Under Our Eyes?

    May 30 2016

    We all get bags under our eyes that make us look tired. Here's how it inevitably happens and some remedies to look your best.​ Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Radiation Sickness Work?

    May 25 2016

    Christian explains the science behind the healthy green glow. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is There A Noise Loud Enough To Kill You?

    May 23 2016

    Loud noises suck. But are they deadly?​ Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does LASIK Work?

    May 18 2016

    Christian explains the process and risks of LASIK surgery, from preoperative exams, to lasers in your eyes. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Can Hot Water Freeze Faster Than Cold Water?

    May 16 2016

    At first, it sounds crazy -- wouldn't hot water take longer to freeze? Weirdly enough, the opposite is sometimes true. Join Christian to learn more about a mystery that's puzzled humanity for centuries in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Can't People Remember Being Born?

    May 11 2016

    You probably remember your 18th birthday, but not your first – or your zeroth. Why is that? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Bitcoin Work?

    May 05 2016

    If money is only valuable when we believe in it, how much is a Bitcoin actually worth? Christian explains the virtual currency as well as how to mine it and the risks involved in investing. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do IUDs Work?

    May 04 2016

    Intrauterine devices (IUDs) are a popular and effective method of birth control. So why don't Americans ​use them? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Silica Gel Work?

    May 02 2016

    What is silica gel, and why do I find little packets of it in everything I buy? Christian explains it all in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Do Those Tabs On Rearview Mirrors Actually Do?

    Apr 26 2016

    Sure, rearview mirrors are cool -- but how do they actually work? How can the same piece of glass have two different amounts of reflection? Join Christian as he explains the science behind these handy devices. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Figs Really Have Dead Wasps In Them?

    Apr 25 2016

    Some figs need fig wasps to pollinate their fruit. But are we eating dead wasps every time we bite into a fig? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Accents Work?

    Apr 20 2016

    Have you ever wondered how accents work? Tune in to this episode of BrainStuff to find out about the ever-evolving accent. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Causes Chapped Lips?

    Apr 18 2016

    For some people, winter means a daily battle against cracking, scaling or peeling lips. But what actually causes chapped lips? How can you prevent it? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How (And Why) Do Cats Purr?

    Apr 13 2016

    Cats purr for all kinds of reasons, including communication and healing themselves. Christian explains how purring works and which cats can't do it. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why Don't Humans Ride Zebras?

    Apr 11 2016

    They’re just horses with stripes, right? So why don’t we ride them around like Seabiscuit or Black Beauty? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does your stomach keep from digesting itself?

    Apr 08 2016

    The stomach is a hollow, many-layered organ that produces powerful acids to break down food -- and another substance to protect the stomach from being digested. Find out what this substance is, and learn more about the stomach, in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the battery light on your car's dashboard for?

    Apr 06 2016

    Cars rely on batteries to keep their electrical parts running and alternators to keep their batteries alive. Battery lights come into play when there's a charging problem. Find out more about battery lights in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is cotton more absorbent than nylon?

    Apr 04 2016

    When water comes in contact with the complex molecules that make up cotton and nylon, it causes a different action in each material -- but why? Listen in as Marshall Brain breaks down the science behind water absorption in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do motion sensors work?

    Apr 01 2016

    There are many kinds of motion sensors, from active to passive systems. Get the scoop on how myriad motion sensing systems work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does a modern smart house look like?

    Mar 30 2016

    What makes a "smart" house so smart? These high-tech houses intelligently use resources and are responsive to the needs and habits of their occupants. Tune in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is it possible to turn coal into oil?

    Mar 28 2016

    As the demand for dwindling oil supplies rises, scientists across the world search for new ways to generate energy. In this episode, Marshall looks at a new attempt to stave off the looming fossil fuel crisis: Turning coal into oil. Tune in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do artificial sweeteners work?

    Mar 25 2016

    At many restaurants, a little container on the table will have regular sugar in addition to artificial sweeteners. But what exactly are artificial sweeteners, and how do they differ in comparison to regular sugar? Listen in to find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can people really build missiles from scratch?

    Mar 23 2016

    In the film Salt, Angelina Jolie's character creates a missile from handy household ingredients -- but could this happen in real life? Tune in as Marshall breaks down the science behind improvised explosives. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a pressurized airplane cabin work?

    Mar 21 2016

    How does a pressurized airplane cabin work -- more importantly, what happens when the pressure fails? Join Marshall Brain as he breaks down the science behind cabin pressurization. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are chiggers, and how do they bite you?

    Mar 18 2016

    If you go outdoors during the right time of year, you may be bitten by chiggers. But what are these creatures, and why do they attack unsuspecting humans? Listen in as Marshall Brain breaks down the life cycle of the chigger -- and how it can affect you. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do people choke under pressure?

    Mar 16 2016

    Anyone who watched the Master's tournament knows that Rory McElroy famously choked under pressure -- but what exactly happened? In this podcast, Marshall explores the science behind choking in stressful or intimidating situations Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does safety glass work?

    Mar 14 2016

    Laminated safety glass has been around since the 1920s. Find out how safety glass is made, how it works and what it's used for in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Sea Monkeys Work

    Mar 09 2016

    Sea Monkeys are a type of brine shrimp. These shrimp create remarkably resilient eggs called cysts. Check out this HowStuffWorks podcast and learn more about the secret behind Sea Monkeys. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What do those plastic recycling symbols means?

    Mar 07 2016

    A typical recycling symbol on plastic looks like a triangle made of arrows. There are seven different types of plastic indicated by the symbols. Check out this HowStuffWorks podcast to learn the difference between each of these plastic types. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's in mothballs?

    Mar 04 2016

    There are two different types of mothballs, each of which contains separate moth-killing ingredients. Tune in as Marshall Brain explains the science behind mothballs in this podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the heat index?

    Mar 02 2016

    Your body has efficient ways to release excess heat, but high temperatures and high humidity create a sticky situation. Find out how the heat index keeps you abreast of dangerous heat situations in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do your ears pop when you dive in a deep pool?

    Feb 29 2016

    Have you ever wondered why your ears pop when you plunge into the deep end of a swimming pool? It's all about keeping your ear drum happy, as this HowStuffWorks podcast reveals. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does someone become a saint?

    Feb 26 2016

    Many religions bestow a special status on people who demonstrate a life of almost perfect virtue -- but how does canonization actually occur? In this episode, Marshall breaks down the process used to officially recognize a person as a saint. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a restraining order, and how do you get one?

    Feb 24 2016

    Restraining orders are cropping up in the news more and more frequently, but how do they work? Join Marshall Brain as he breaks down the legality of restraining orders -- and how to get one. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will space tourism become a reality?

    Feb 22 2016

    With private companies frantically searching for new ways to take people into orbit, it seems that space tourism could become a reality (for those who can afford it). But will it ever really happen? Tune in and learn more in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do carbohydrates work?

    Feb 12 2016

    We hear about carbohydrates in the news constantly -- the complex carbs are supposed to be better than the simple ones, but why? In fact, what exactly is a carbohydrate? Listen in and learn more in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Securing Your Wifi Router

    Feb 08 2016

    Is it possible to get arrested for downloading illegal material even if you never download it yourself? Yes: When someone else logs onto your unprotected wifi, they can make a clean getaway while you get stuck with the blame. Tune in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do trick birthday candles work?

    Feb 05 2016

    Candles are simple yet ingenious light-producing devices, and it only takes one extra ingredient to turn them into trick candles. Find out how regular and trick candles work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's that bumpy stuff on my ceiling?

    Feb 03 2016

    That popcorn-like stuff on your ceiling is actually a specific kind of ceiling finish. Tune in to this podcast from HowStuffWorks.com to find out what this treatment is -- and why it's so popular. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do nail penny measurements work?

    Feb 01 2016

    Nails are measured by a unit called a penny. This podcast from HowStuffWorks.com explains what the penny designation means -- and where it comes from. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do artificial flavors work?

    Jan 29 2016

    Artificial flavors imitate natural flavors and are found in many processed products. Learn more about the chemistry of flavors, both natural and artificial, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are motion cards and how do they work?

    Jan 27 2016

    Motion cards, which have been around for decades, give the illusion of motion using multiple images and a special printing process. In this episode, Marshall discusses the technology behind motion cards and how it has improved over the years. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does an EPIRB distress radio work?

    Jan 25 2016

    An EPIRB, or Emergency Position Indicating Radio Beacon, helps rescuers find people -- mostly boaters -- in emergency situations. Tune in to find out how EPIRB radios work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can you explain the diameter measurements used in bullets?

    Jan 22 2016

    Bullets are measured by calibers, which indicate their diameter in inches. Find out more about bullets and measurement in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How are movies stored on DVD discs?

    Jan 20 2016

    How can you store an entire movie on one little DVD disc? It's all about compression! In this episode, Marshall explains the technical details and standards of video compression. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why shouldn't you go swimming right after a meal?

    Jan 18 2016

    As children, many of us have been admonished not to go swimming for at least an hour after eating. But, as it turns out, there's biology behind this commonplace advice. Tune in to this episode to find out why you shouldn't swim right after you eat. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What causes that howling sound in PA systems?

    Jan 13 2016

    A public address system's speakers emit strange noises, or feedback, when sound gets re-amplified. Get a detailed explanation of how feedback occurs in this podcast from HowStuffWorks.com.A public address system's speakers emit strange noises, or feedback, when sound gets re-amplified. Get a detailed explanation of how feedback occurs in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does dry ice work?

    Jan 11 2016

    Dry ice is different from regular ice in several ways. Find out what makes dry ice so unique -- and why it's so good for transporting perishables over long distances -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is it true that a diesel engine can operate underwater?

    Jan 08 2016

    Under certain circumstances, diesel engines can operate while submerged in water. Find out what it takes to waterproof an engine -- and why diesel engines are better candidates than their gasoline counterparts -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where does cork come from?

    Jan 06 2016

    Most cork comes from special trees that grow in places near the Mediterranean Sea. Learn more about cork oak trees, cork properties, cork products and cork processing in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does Pez mean?

    Jan 04 2016

    Today, Pez candy dispensers are a sweet treat for children and a novelty for adults. Originally, however, they were created to help adults quit smoking. Learn more about the fascinating history of Pez in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do we measure sea level?

    Jan 01 2016

    Sea level is an important measurement, but it's also a complicated one. Find out why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is the sound on vinyl records better than on CDs?

    Dec 30 2015

    The sound quality of vinyl records is sometimes better than that of CDs and DVDs -- and sometimes worse. Learn more about the difference between the sound quality of records, CDs and DVDs in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does high-speed rail work?

    Dec 28 2015

    Although it's common in some countries, high-speed rail service isn't available in the United States -- yet. Tune in to learn more about this swift rail service -- and how soon we're likely to have it in the U.S. -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a traffic light detect cars?

    Dec 25 2015

    Traffic lights detect vehicles using a variety of methods. Check out this podcast from HowStuffWorks.com to find out how timers, inductive loops and other detectors keep traffic running smoothly. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can turbines change our energy future?

    Dec 23 2015

    Gas turbine engines often power jet airplanes and helicopters, but they may turn up in other applications in the near future. Discover how turbine engines work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do self-winding watches work?

    Dec 21 2015

    Self-winding watches keep the time with the help of a piece of metal, gravity and the natural movement of your arm. Tune in to learn more about self-winding watches in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does catnip work?

    Dec 18 2015

    You've probably heard that catnip drives felines wild, but did you know that it's a plant related to mint? And that it doesn't affect all cats? Find out how catnip works in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do freezing temperatures yield both snow and rain?

    Dec 16 2015

    When the temperature dips below freezing, precipitation often turns into snow, but sometimes you'll get freezing rain or sleet. Why? Find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do they make fortune cookies?

    Dec 14 2015

    You've probably had countless fortune cookies after Chinese meals, but have you ever wondered how they're made? Discover the "food technology" behind those prescient little cookies in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a jet engine's afterburner work?

    Dec 11 2015

    The afterburner on a jet engine adds thrust to the engine. Tune in as Marshall Brain explains how an afterburner works -- and the pros and cons of using one -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a magneto work?

    Dec 09 2015

    A magneto is a kind of electrical generator used in small gasoline engines in lieu of a battery. Find out how magnetos work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is leather and where does it come from?

    Dec 07 2015

    Most leather is made from processed cattle skin, although synthetic and other varieties exist. Learn more about leather in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is there any way to see satellites that are in orbit?

    Dec 04 2015

    There are hundreds of satellites orbiting the Earth, but it's not always easy to see them. Get Marshall's tips on how to spot satellites in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Sonic Booms Work

    Dec 02 2015

    The sonic booms formed by planes are similar to the wakes left by boats in water. To learn more about sonic booms, check out this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do self-setting clocks work?

    Nov 30 2015

    Self-setting clocks and watches synchronize themselves with the atomic clock in Colorado with the help of a special radio station. Find out how -- and learn more about NIST's radio station -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are dissolvable stitches?

    Nov 27 2015

    Stitches have been used for centuries, but dissolvable ones are the most common these days. Why would you want stitches to dissolve, and how do they work? In this episode, Marshall discusses the benefits and features of absorbable sutures. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What would happen if you fired a gun on a moving train?

    Nov 25 2015

    If you fired a gun from a train moving at the speed of a bullet, what would happen? It depends on your frame of reference. Learn more about reference frames and physics in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is sodium nitrate?

    Nov 23 2015

    You'll find sodium nitrate in lots of pink meats like hot dogs and salami, but why? And is it bad for you? Find out what's up with sodium nitrate in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do cavities work?

    Nov 18 2015

    It's editor's choice month, so tune in and catch our editors' favorite episodes. This week, Marshall is covering cavities: They're formed by bacteria that excrete an acid onto the enamel of a tooth -- but how? Listen in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does Krispy Kreme work?

    Nov 16 2015

    A single Krispy Kreme store can produce 100,000 doughnuts a day. To learn more about how these Krispy Kreme doughnuts are made, check out this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why use a humidifier in your home in the winter?

    Nov 13 2015

    Lots of people use humidifiers in their homes, especially in winter. But why? Marshall discusses some advantages of using humidifiers (and disadvantages of not using them) and different types of home humidifiers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do I burn calories on a stair machine?

    Nov 11 2015

    If you've ever sweated your way through a work-out on a stair machine, you know that calories are definitely being burned in the process. But how? Learn more about foot-pounds, horsepower and stair machines in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a Dippy Bird work?

    Nov 09 2015

    A Dippy Bird is a strange-looking novelty toy, but how does it work? Marshall Brain breaks down the surprisingly sophisticated mechanics of the Dippy Bird in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Marshmallows Work

    Nov 06 2015

    Marshmallows are an old candy -- they've been around since the 1800s. The name marshmallow comes from the original recipe, which called for sap from the marshmallow plant. Check out this HowStuffWorks to learn more about the history of marshmallows. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do honeybees make honey?

    Nov 04 2015

    When it comes to making honey, bees are skilled chemists. Discover how they use enzymes to turn sugary flower nectar into a sweet, stable food source in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can some eggs be better for you than others?

    Nov 02 2015

    If you've been to the grocery store recently, you know that eggs come in many varieties, some claiming to be better for you than others. What differentiates a normal egg from a "special" one? Find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do airport scanners work?

    Oct 30 2015

    The new full-body scanners used at airports in the United States have caused a huge controversy -- but how do they work? In this episode, Marshall breaks down the science behind full-body scanners, along with the uproar they've caused. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can you drive across Antarctica?

    Oct 28 2015

    Given that it's more than 2,000 miles across and without a gas station in sight, driving across Antarctica is a daunting task. Tune in as Marshall Brain explains how it works. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the difference between a turbo-charger and a super-charger?

    Oct 26 2015

    Both turbo- and super-chargers are forced inductions systems, meaning they compress the air flowing into the engine. This compression causes each cylinder of an engine to produce more power. Check out this HowStuffWorks article to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Rearview Mirrors Work

    Oct 23 2015

    How can the same piece of glass have two different amounts of reflection? Learn more about rearview mirrors in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Will a really big earthquake sink Western California?

    Oct 21 2015

    Given California's history of earthquakes and major fault lines, it's not surprising that people speculate about parts of California breaking off into the ocean. Fortunately, seismic forces don't work that way, as Marshall Brain explains in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do astronomers measure distance?

    Oct 19 2015

    Since astronomers can't actually travel to a star, they rely on two ingenious methods to measure a star's distance from earth. Listen in as Marshall Brain breaks down the science of space measurement in this editor's choice podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What will airplanes look like in 2025?

    Oct 17 2015

    Most modern airplanes have a similar design, but NASA has a plan to move the world of aviation into the future by partnering with the world's airplane manufacturers to radically redesign the typical airplane. Tune in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How is olive oil made?

    Oct 14 2015

    People across the planet love olive oil, and it's not hard to see why: This tasty liquid lends flavor to hundreds of dishes, and it's been used for thousands of years. But how does it get from the tree to the bottle? Tune in to find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do 3D movies cause headaches?

    Oct 12 2015

    Although 3-dimensional movies have become increasingly popular, numerous viewers have complained of headaches while watching these films. Why? Tune in as HowStuffWorks.com founder Marshall Brain breaks down the science behind 3D films. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Helium Works

    Oct 09 2015

    The helium used in balloons is created by uranium interacting with natural gas. Learn more about helium and uranium in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Subprime Loans Work

    Oct 07 2015

    Subprime loans are made to borrowers who do not qualify for the best market interest rates. Learn more about subprime loans in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Night Vision Works

    Oct 05 2015

    Although the human eye is able to adapt to wildly different environments, it takes a certain amount of time to adjust to sudden changes in light. Learn more about the chemicals powering the human eye in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Baking Powder Works

    Oct 02 2015

    Baking powder is made of three components -- an acid, a base, and a filler. Check out this HowStuffWorks podcast to learn more about baking powder. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Atomic Clocks Work

    Sep 30 2015

    Unlike more conventional timepieces, atomic clocks use the resonant frequency of atoms to measure the passage of time. Learn more about atomic clocks in this Brainstuff podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Air Force One Works

    Sep 28 2015

    Air Force One is gigantic, but how does it work? This is one of our editors' favorite episodes, and it's no surprise why: Listen in for a brief, detailed look at the interior of Air Force One. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What causes the smell after rain?

    Sep 11 2015

    The smell of rain is often linked with spring, and it's been alluded to in poems, songs and stories for centuries. But what exactly causes this distinctive smell? Tune in and find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do Pop Rocks candy work?

    Sep 09 2015

    Hard candy (like a lollypop or a Jolly Rancher) is made from sugar, corn syrup, water and flavoring. Check out our HowStuffWorks article to learn how conventional candy is combined with carbon dioxide to produce Pop Rocks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can I see the stuff astronauts left on the moon?

    Sep 07 2015

    Using a telescope to view the moon is fascinating -- but could we see the leftovers of NASA's lunar expeditions? Check out this HowStuffWorks podcast to learn more about lunar landings and telescopes. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Golf Ball Dimples Work

    Sep 04 2015

    If you've ever looked at a golf ball, you've probably noticed it has dimples. But why is that? Learn the story behind dimpled golf balls in this Brainstuff podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How the Dow Jones Industrial Average Works

    Sep 02 2015

    The Dow Jones Industrial Average tracks a variety of stocks to assist investors. Learn how the Dow Jones keeps tabs on the stock market. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does the snow dragon eat and digest snow?

    Aug 28 2015

    For cities plagued by yearly snowstorms, a fleet of snow plows and salt often aren't enough to get rid of excess drifts. Luckily, there's another option: Snow dragons. These machines can melt snow on the spot -- but how do they work? Tune in to find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can nasal sprays be addictive?

    Aug 26 2015

    Some people have become so dependent on their nasal sprays and products that they might worry they're addicted. Marshall Brain explains why you can't really be addicted to nasal products in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is Schadenfreude?

    Aug 24 2015

    Schadenfreude is a German word that means taking pleasure in someone else's pain. But it's not the same as sadism, as Marshall Brain explains in this episode. Tune in to learn more about this particularly German sensation. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How many balloons would it take to life someone off the ground?

    Aug 21 2015

    Balloons are often filled with helium, which has a lifting force of one gram per meter. It's possible to assemble enough balloons to lift yourself from the ground -- but how many balloons does it take? Tune into this HowStuffWorks podcast to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the difference between LPG or natural gas?

    Aug 19 2015

    Since liquefied petroleum gas and natural gas have very different properties, it's always important to specify which substance you will use when buying an appliance. Check out this podcast from HowStuffWorks to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can you figure out how far away lightning struck?

    Aug 17 2015

    Check out this podcast from HowStuffWorks to learn how to gauge the distance of a lightning strike with a simple equation. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do bake and broil settings differ?

    Aug 14 2015

    Kitchen ovens typically have two settings: bake and broil. What's the difference between the two? Explore the science behind baking and broiling in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do astronauts function in their spacesuits?

    Aug 12 2015

    Astronauts wear special suits while they're working in space, and these spacewalks can last for hours. In this episode, Marshall Brain explains how astronauts take care of their basic needs while wearing spacesuits. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do a zebra's stripes act as camouflage?

    Aug 10 2015

    A zebra's stripes offer protection from predators in the form of camouflage -- and a way to identify individual members within the larger group. Learn more about zebra stripes in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • To maximize happiness, what should you spend money on?

    Aug 07 2015

    They say that money can't buy happiness, but it can definitely contribute to your well-being. So what exactly should you spend your money on to maximize your happiness? Stuff? Experiences? Marshall Brain investigates in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a vactrain?

    Aug 05 2015

    Vactrains may be the next big thing in the evolution of high-speed transportation. In this episode, Marshall explains how vactrain systems will work, how close they are to becoming reality and the potential they have to impact global transportation. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does asphalt work, and where does it come from?

    Aug 03 2015

    Asphalt is an extremely common, oil-derived material that's used to pave a majority of roads in the United States. Tune in to learn more about asphalt. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does red eye in photographs work?

    Jul 31 2015

    The flash of a camera is bright enough to cause a reflection off the human retina -- the red we see in these photos comes from the blood vessels in the eye. Learn more about red eyes and cameras in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Submarines Work?

    Jul 29 2015

    Submarines use oxygen generators to create oxygen from water. Learn more about oxygen in submarines in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Starting A Car in Cold Weather Works

    Jul 27 2015

    Cars are hard to start during cold weather for three reasons: gasoline evaporates less in cold temperatures, oil gets thicker in the cold, and the chemical reactions in cold batteries are slower than normal. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How hair length works

    Jul 24 2015

    As hair cells form in follicles, they push other cells out of the follicle. Check out this HowStuffWorks podcast to learn more about your hair's growth and rest phases. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How are old black and white movies colorized?

    Jul 22 2015

    Adding color to black and white movies is incredibly tedious. To speed up the process, the coloring is done on a computer, using a digital version of the film. Learn more about colorization in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why doesn't paper money disintegrate in the washing machine?

    Jul 20 2015

    Normal paper is made of cellulose from trees, but paper money is made from cotton and linen fibers. Learn how this makes paper money more water-resistant in this podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What would happen on a carousel moving at the speed of light?

    Jul 17 2015

    If you could spin a carousel fast enough, would time stand still for the people on the carousel? Theoretically, it's a reasonable assumption. Join Marshall Brain as he breaks down the speed of light and time in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can I make artificial snow in my backyard?

    Jul 15 2015

    If you live in a cold enough climate, you can make fake snow just like they do for ski resorts. In this episode, Marshall shares two techniques for creating artificial snow in your own backyard -- and what to do if you live in a warm climate. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How is wire measured?

    Jul 13 2015

    In the United States, wires are measured by diameter using a standard called AWG, or American Wire Gauge. Discover how the AWG system works -- and where it came from -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can water go bad?

    Jul 10 2015

    Many people store water for emergencies -- but is it true that water sitting for too long will go bad? Listen in as Marshall Brain breaks down the science of water purification in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What do the ul marks on so many products mean?

    Jul 08 2015

    UL stands for 'underwriters laboratories,' a safety testing organization -- but what exactly does this group do, and why do they do it? Tune in and learn more about the UL mark in this podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the total amount of gold in the world?

    Jul 06 2015

    Have you ever wondered how much gold the world has produced over time? How about platinum? Get the grand totals in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do candles work?

    Jul 03 2015

    Before there were light bulbs, candles made the world a brighter place. Discover the ingenious technology behind candles in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are frankincense and myrrh?

    Jul 01 2015

    You might recognize frankincense and myrrh from the Biblical story of Jesus, but have you ever wondered exactly what they are? Tune in to get the skinny on frankincense and myrrh in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can an electric toothbrush recharge its batteries?

    Jun 29 2015

    An electric toothbrush gets power from its base without the help of metal contacts. Find out how this sealed system works in the following podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Smoke Works

    Jun 26 2015

    When you put a fresh piece of wood on a hot fire, volatile organic carbons in the wood evaporate, creating smoke. Learn more about smoke in this Brainstuff podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How X-Ray Machines Work

    Jun 24 2015

    An X-ray machine is essentially a camera that uses x-rays to expose the film, instead of visible light. Learn more about x-ray machines in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Boogers and Mucuous Membranes Work

    Jun 22 2015

    Mucous contains mostly water and mucin -- a branched polysaccharide. When polysaccharides such as mucin or cornstarch are mixed with water, the result is a sticky substance. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can we make gasoline from bacteria?

    Jun 19 2015

    A new company is claiming that, next year, the problems of carbon emissions, foreign oil dependence, oil spills, fuel shortages, etc. will all end due to a breakthrough in biotechnology. Is it true? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the difference between good and bad toy helicopters?

    Jun 15 2015

    Can you buy a good, long-lasting toy helicopter for under $30? Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do human beings have eyebrows?

    Jun 10 2015

    Eyebrows are prominent human features, but what purpose do they serve? Scientists think they help keep stuff out of our eyes and aid in nonverbal communication, among other things. Learn more about eyebrows in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where do salad dressings get their bizarre names?

    Jun 08 2015

    Salad dressings like Ranch and Thousand Island are traditional favorites, but have you ever wondered how they got their names? Marshall Brain reveals what salad dressings are made of -- and where their famous names came from -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Botulism Works

    Jun 05 2015

    Botulism bacteria creates a type of poisoning and paralysis -- but how does it actually work? Check out this HowStuffWorks podcast to learn more about the effects and spread of botulism. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Diaper Crystals Work

    Jun 03 2015

    Most disposable diapers contain a crystalline, absorbent substance called sodium polyacrylate. Learn how this polymer helps contain messes -- and some of the controversy surrounding this substance -- in this podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How V-chips Work

    Jun 01 2015

    As of 1999, all TV sets sold in the Untied States are required to contain a viewer-control chip, also known as a v-chip. Check out this HowStuffWorks podcast to learn more about v-chips and television ratings Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do aircraft carriers work?

    May 29 2015

    Aircraft carriers contain some of the most advanced technology in the world. Learn more about aircraft and aircraft carriers in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does an upside down airplane's engine get fuel?

    May 27 2015

    Airplanes rely on gravity to disperse fuel to the engine, but what happens when the plane is flying upside down? Tune in to this podcast from HowStuffWorks.com to discover ways that acrobatic planes fly upside down without crashing. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a decibel, and how is it measured?

    May 22 2015

    The decibel unit is used to measure the intensity of a sounds. Check out our HowStuffWorks article to learn more about the decibel scale. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do the plugs on some appliances have two prongs and others have three?

    May 20 2015

    When you look at a normal 120-volt outlet in the United States, there are two vertical slots and then a round hole centered below. Take a look at this HowStuffWorks article to learn why appliance cords are shaped this way. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do sodium acetate heat pads work?

    May 18 2015

    Sodium acetate heat pads start out as a pouch of liquid and crystallize into a warm solid. Explore the fascinating chemistry that makes these heat pads work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do they create patterns in a baseball field?

    May 15 2015

    Groundskeepers at baseball fields create patterns using a process called lawn striping. Tune in to find out how this process works -- and how you can duplicate it to create designs in your own yard. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does rust work?

    May 08 2015

    In this episode of BrainStuff, Marshall Brain explains the chemistry behind rust, or iron oxide, and the rusting process. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What exactly is pastrami?

    May 01 2015

    Like cheese, pastrami is a good example of old-fashioned food preservation techniques. Find out how corned beef becomes pastrami in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do instant cameras work?

    Apr 24 2015

    Instant cameras makes it possible to see a photograph almost immediately after you take it. But how? In this episode, Marshall explains the chemical processes behind regular and instant photographic film. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do feet stink?

    Apr 22 2015

    What causes stinky, smelly feet? Sweat and bacteria. Find out exactly how bacteria turn sweat into malodorous feet in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What do the symbols on the U.S. one-dollar bill mean?

    Apr 20 2015

    If you've ever looked carefully at a U.S. one-dollar bill, you've probably noticed some mysterious symbols and Latin phrases. What do these symbols stand for? Why are they on there? Marshall Brain breaks it down for you in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How many calories does a person need daily?

    Apr 17 2015

    The amount of calories a person needs to consume on a daily basis varies by individual. Discover the three factors that can help you determine your daily caloric needs in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do they get the lead in a wooden pencil?

    Apr 13 2015

    Today's pencils are manufactured very differently than the original versions; but they still use a material called graphite, which isn't lead at all. How does the graphite get in the pencil? Find out in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can a valet rip you off?

    Apr 10 2015

    Once relegated to high-end restaurants and clubs, valets are increasingly common across the United States. But how can you trust your valet -- and how will you know if the valet is scamming you? Tune in and find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Proton Therapy Works

    Apr 08 2015

    As a method of treating cancer, proton therapy has great potential. But how does it work, exactly, and what makes it superior to other forms of cancer treatment? Tune in and find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a lightyear?

    Apr 03 2015

    A lightyear is a way of measuring distance -- specifically, the distance light can travel in one year. Just how far is that? Check out this podcast from HowStuffWorks to learn more about astronomy. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How much oxygen does a person consume in a day?

    Apr 01 2015

    The average adult at rest inhales and exhales between 7 to 8 liters of air each minutes. Check out this HowStuffWorks podcast to learn how much oxygen a person uses during a day of inhalation and exhalation. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does chlorine bleach work?

    Mar 27 2015

    When you buy a gallon of bleach at the grocery store, what are you actually purchasing? Check out this HowStuffWorks podcast to learn more about bleach, chlorine and the chemical reactions behind these products. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why can't we breathe underwater?

    Mar 25 2015

    Water is made up of hydrogen and oxygen, so why aren't we able to breathe underwater? Find out in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does it mean when a car has dual overhead cams?

    Mar 23 2015

    A camshaft plays an integral role in the functioning of an engine. And dual overhead cams ramp up a machine's performance even more. Find out how dual overhead camshafts work in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could anti-lock brakes detect a flat tire?

    Mar 20 2015

    By using a computer to monitor the rotation of the car's wheels, an anti-lock braking system helps drivers avoid skids. Could this computer also monitor flat tires? Check out this HowStuffWorks podcast to learn more about brake systems. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why are traffic lights being replaced with LEDs?

    Mar 18 2015

    Across the country, incandescent traffic lights are being replaced with LED arrays. Check out this podcast from HowStuffWorks to learn more about the advantages of LED traffic lights. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is a circular saw louder than a table saw?

    Mar 16 2015

    Circular saws are much noisier than table saws partly because of the type of motor they possess. Learn more about universal and induction motors in BrainStuff, a podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does an airplane toilet work?

    Mar 13 2015

    Airplane toilets serve the same function as regular ones, but because they exist in a moving environment, they rely on slightly different technology to get the job done. Find out how they work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do cats purr?

    Mar 09 2015

    Cats tend to purr when they're happy, but pleasure isn't the only reason for this behavior. And they aren't the only animals who purr. Find out why and how cats and other animals purr in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Flatulence Works

    Mar 06 2015

    Learn about the causes of gas -- and not the kind you put in your car -- in this podcast from Marshall Brain. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the deal with milk?

    Mar 04 2015

    Milk is often touted as a "miracle drink," full of restorative, nutritional properties. And there's some truth to this claim. Find out why mammal milk is called "the perfect food" in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How much does planet Earth weigh?

    Mar 02 2015

    As far as weight goes, Earth is a pretty hefty celestial body. But exactly how heavy? And how does one measure something so massive? Find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are other ways to store energy besides batteries?

    Feb 27 2015

    Batteries are a common way to store energy, but there are many others. Discover more energy storage techniques, from falling weights to fuel cells, in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does the common cold work?

    Feb 25 2015

    We've all had a cold at one point or another; it entails an uncomfortable cocktail of symptoms like sneezing, coughing and a runny nose. But why do we get colds? How do they work? Find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do dry chemical fire extinguishers work?

    Feb 23 2015

    Three elements create a fire. Discover what they are and how dry chemical fire extinguishers combat them in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where does aluminum come from?

    Feb 20 2015

    Aluminum is both lightweight and strong, so it's no wonder that space stations, airplanes and thousands of other products use this metal. But where does it come from, and what makes it so special? Tune in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do thirty pounds of air in your tires hold up two tons of car?

    Feb 16 2015

    Cars are heavy machines, so how can a few small, pressurized tires support their weight? Marshall Brain explains how tire pressure and contact patches work in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why don't they use normal air in race car tires?

    Feb 13 2015

    Race car tires are often filled with nitrogen because nitrogen pressure is more consistent than air pressure. In this episode, Marshall explains why nitrogen is better for race cars -- but not for regular vehicles. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do plastics work? What is actually in a plastic?

    Feb 11 2015

    Plastics have become so ubiquitous that we often take them for granted, but have you ever wondered where these popular materials come from? In this episode, Marshall explains what plastics are made of. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a speedometer in an airplane work?

    Feb 06 2015

    Most people are familiar with speedometers in cars, but do you know how air speed is determined? In this episode, Marshall explains how devices called pitot tubes gauge the speed of moving aircraft. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does CCC, the new form of CPR, work?

    Feb 04 2015

    Continuous chest compression is an updated form of CPR that's much easier to administer -- and, studies suggest, more effective. In this episode, Marshall Brain explains how CCC works. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the difference between a hardwood and a softwood?

    Feb 02 2015

    When it comes to differentiating between hardwoods and softwoods, it's not a matter of hardness or density -- it's all about plant reproduction. Marshall explains what angiosperms and gymnosperms are in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why does your computer need a battery?

    Jan 30 2015

    Computers have a small battery that's important because it keeps the machine's clock running -- and sometimes, your computer. Get the goods on computer batteries in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does nitrous oxide help an engine perform better?

    Jan 28 2015

    Nitrous oxide boosts engine power in two significant ways. Find out exactly how nitrous works its magic in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does an oxygen canister on an airplane work?

    Jan 26 2015

    When you think of storing oxygen, metal tanks full of gas might come to mind. There's also a chemical method -- tune in to this podcast from HowStuffWorks.com to learn about how oxygen canisters work. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • In baseball, how does a pitcher throw a curveball?

    Jan 21 2015

    A curveball is a pitcher's secret weapon for striking out batters. Discover the physics behind a great curveball in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do retractable roofs in convertible stadiums work?

    Jan 19 2015

    Retractable roofs are the latest trend in sports stadium design. Marshall highlights multiple examples of convertible stadiums in the United States and explains how they work in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do strokes work?

    Jan 16 2015

    In a stroke, something disrupts the normal blood supply to parts of the brain. Without oxygen, affected brain cells will begin to die. Tune in as Marshall explains the causes of -- and treatments for -- strokes. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Semi Submarines

    Jan 12 2015

    There's a reason that most submarines are owned by governments - they're incredibly expensive. So what's a sub-loving consumer to do? Tune in as Marshall Brain breaks down the science behind semi subs (and why it makes them so much less expensive). Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do neon and fluorescent lights differ?

    Jan 07 2015

    Neon and fluorescent lights differ in several ways, including bulb shape, color of light emitted and substances used to produce that light. Find out how neon and fluorescent lights work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a dollar bill changer work?

    Jan 05 2015

    A dollar bill changer doesn't just have to sense a bill's denomination -- it also needs to be able to tell whether bills are fake. Join Marshall Brain as he breaks down the science behind bill changers in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is carrageenan?

    Jan 02 2015

    Carrageenan is a gum derived from seaweed that helps processed food withstand the rigors of transportation and long waits in warehouses. Learn more about the role that carrageenan plays in food by checking out this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the birthday paradox?

    Dec 31 2014

    In a group of 20, there's a 50/50 chance that two people will have the same birthday; this is called the birthday paradox. Find out how it works in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How long before sharks start going extinct?

    Dec 29 2014

    Sharks are ancient, fierce creatures, but they're also in danger of extinction on many fronts. Discover all the factors that make sharks vulnerable -- and what you can do to help -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Replacing Toilets Works

    Dec 24 2014

    A family of four can consume more than 300 gallons of water per day. Old toilets use 5 gallons per flush, and this water use quickly adds up. Check out this HowStuffWorks podcast and learn why cities across the US are replacing their old commodes. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why are my power bills so high?

    Dec 22 2014

    When it comes to energy usage, heating and cooling appliances contribute the most to your power bill. Tune in to find out which appliances are the most power-hungry -- and why -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is there a way to compare a human being to an engine?

    Dec 17 2014

    Human muscles are essentially biological engines. In terms of efficiency, biological engines are amazing. Listen in as Marshall Brain calculates human efficiency in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How High-level Nuclear Waste Works

    Dec 12 2014

    What exactly is high-level nuclear waste, and how are we dealing with it today? In this episode, Marshall breaks down the techniques used to store high-level nuclear waste. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does fusion power work?

    Dec 10 2014

    Fusion reactors like the sun produce huge amounts of energy, so why aren't there fusion power plants everywhere? In this episode, Marshall explains the chemistry of fusion reactions and discusses how close fusion is to becoming a viable energy source. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does Nitroglycerin work?

    Dec 08 2014

    What do you get when you combine acids and glycerin? Nitroglycerin! What is this substance used for, and why is it so unstable? In this episode, Marshall takes a look at the chemistry and explosive qualities of Nitrogyclerin. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is chewing gum made of?

    Dec 05 2014

    Up until World War II, chewing gum was made of a substance called chicle. Check out this HowStuffWorks podcast to learn more about the ingredients of modern chewing gum. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why can't a couch potato run a marathon?

    Dec 03 2014

    Intuitively, it makes sense that a trained athlete can run a marathon easily, while a "couch potato" can barely run a mile. But what's the biology behind it? Find out how fit and unfit bodies respond to exercise in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do polymer crystals work, and why do they absorb so much water?

    Nov 28 2014

    Polymer crystals are extremely absorbent, and that's why you'll often find them in disposable diapers. Marshall explains how polymer crystals are able to absorb large quantities of liquids -- and keep you cool and dry -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do people pull large objects with their teeth?

    Nov 26 2014

    Have you ever seen those folks that can pull a whole truck with their teeth? Tune in as Marshall Brain explains the physics behind pulling large objects with your teeth in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is a popsicle called a quiescently frozen confection?

    Nov 24 2014

    Popsicles are also called "quiescently frozen confections" because of the way they're frozen. Learn more about how flavored ice treats are made -- and what distinguishes them from ice cream -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do scratch-and-sniff stickers work?

    Nov 21 2014

    Scratch-and-sniff stickers are novelties that delight both children and adults. Sniff out the ingenious technology that makes them work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is carbon monoxide so poisonous?

    Nov 19 2014

    The structure of hemoglobin causes oxygen to bind loosely to iron -- however, carbon monoxide binds very tightly to the blood's iron, reducing your ability to breathe. Check out this podcast from HowStuffWorks to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the worst invasive public species?

    Nov 14 2014

    From kudzu to cane toads, invasive species are changing the world. But which of these transplants is the worst for the local landscape? Tune in as Marshall Brain tackles invasive species across the world -- and ultimately concludes which one is the worst. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How many people work at a Formula 1 pit stop?

    Nov 12 2014

    If you've ever seen a Formula 1 race, then you know the race isn't just between cars -- it's also between pit stop crews. In seven seconds these crews perform an entire pit stop. But how does it work, and how many people does it take? Tune in to find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • When I pay by check, where does that check go?

    Nov 07 2014

    When you write a check to purchase goods and services, it passes through the hands of several banks before the process is complete. Marshall explains how checks are processed through intermediary banks in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a credit card's magnetic stripe work?

    Nov 05 2014

    The magnetic stripe on the back of the card plays a key role in transactions made by credit card. Learn more about how these "mag stripes" work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do Wint-O-Green Life Savers spark in the dark?

    Nov 03 2014

    If you've ever bitten into a Wint-O-Green Life Saver candy in the dark, you've probably noticed an accompanying spark of light. Marshall Brain explains the chemistry behind the phenomenon known as triboluminescence in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can we eliminate fossil fuels?

    Oct 31 2014

    It's no secret that fossil fuels have a detrimental effect on the environment, but do feasible alternatives exist? In this episode, Marshall takes a look at the possibilities of DIY biofuel. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does "not guilty by reason of insanity" mean?

    Oct 29 2014

    Claiming the "insanity defense" in fictional courts of law is common and seems pretty straightforward; in real life, it's much more rare and complex. Discover the legal definition of "insanity" -- and how it relates to mental illness -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do kosher foods work?

    Oct 27 2014

    In this episode of BrainStuff, Marshall Brain gives a detailed explanation of the Jewish dietary laws and preparations that make foods "kosher" and "pareve." Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do you have a hidden savant inside your brain?

    Oct 24 2014

    Savant capabilities seem extraordinary, but what if they aren't? What if we all have amazing talents embedded in our brains? In this episode, Marshall discusses different techniques that have revealed savant-like qualities in ordinary people. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is there a way to detect illegal phone taps?

    Oct 15 2014

    Tapping into someone's phone line is relatively easy to do on a land line. Fortunately, phone taps are easy to detect. Tune in to this podcast from HowStuffWorks.com to get Marshall Brain's tips on ferreting out illegal phone taps. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is it possible to carbonate your own water?

    Oct 13 2014

    If you enjoy drinking carbonated water, this episode's for you! Listen in as Marshall Brain explains how to make your own carbonated water at home for a fraction of the price you pay in stores. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a fossil?

    Oct 10 2014

    Fossils provide us with an important picture of ancient life. But how is a fossil created, exactly? Marshall Brain breaks down the various natural processes behind fossilization in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is superconductivity?

    Oct 08 2014

    Superconductive materials have no electrical resistance, but why is superconductivity a big deal? Marshall Brain explains the potential benefits and implications of superconductive materials, as well as how they work, in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do terrorist bombs work?

    Oct 06 2014

    Terrorists have a new way of getting bombs into the United States: mailing them. In this episode, Marshall breaks down the science behind the types of bombs used by terrorists, and the explosive ingredients involved. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How valuable is exercise to your health?

    Sep 26 2014

    We all know that exercise is an important way to safeguard your health. But how, exactly? In this episode, Marshall discusses the health benefits of exercise -- and how much we need each week in order to take advantage of these benefits. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can water cut through steel?

    Sep 24 2014

    Waterjets are tools that use highly pressurized, focused streams of water to cut through metal and other solid materials. Learn more about waterjets in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do flies breathe?

    Sep 22 2014

    Insects like flies have a very different respiratory system than we do. Learn more about how flies and insects breathe in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How often do state quarters come out?

    Sep 19 2014

    A new state quarter is released about every ten weeks, and they're released according to the order in which each state joined the union. Learn more about state quarters in this podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do gasoline direct injection engines work?

    Sep 15 2014

    The latest improvement on the internal combustion engine is called gasoline direct injection. In this episode, Marshall explains how gasoline direct injection technology works -- and how soon we'll see it in production vehicles. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do big city shell and three-card monte games work?

    Sep 10 2014

    Shell games and three-card monte games are common sights in big cities, but did you know they're scams? Marshall explains the similar principles and tricks behind these "games" -- and why you can't win them -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is Low-E glass?

    Sep 08 2014

    Low-emissivity (Low-E) glass is a special, expensive type that blocks out ultraviolet and infrared light. This coated glass can help protect your furniture and improve the energy efficiency of your home, as Marshall Brain explains in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where should I sit to get the best ride on a roller coaster?

    Sep 05 2014

    Each roller coaster car is moved by the cars connected to it, which makes the experience of riding a rollercoaster a bit different in each car. Learn which seat on a roller coaster is best for you, based on science and your personal preferences. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is it possible to rescue water-soaked electronics?

    Sep 03 2014

    Is it possible to rescue an electronic device dunked in water? In this episode, Marshall recounts an unfortunate meeting between a GPS device and a dog's water bowl. Tune in to learn whether or not he was able to fix it. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How did the moon get there?

    Aug 25 2014

    The moon has orbited over human civilization since the dawn of time, but it took us thousands of years to figure out how it actually got there. Tune in as Marshall Brain examines the formation of the moon. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do calorie meters work?

    Aug 22 2014

    It's easy to jump on an exercise machine and watch the calorie meter -- but how accurate are these meters? Learn more about calorie meters in this HowStuffWorks podcast Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does popcorn work?

    Aug 20 2014

    Popcorn is a ubiquitous snack, but there's nothing commonplace about its creation. How does a kernel of corn become a puffed white treat? Find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Cooking at High Altitudes Works

    Aug 18 2014

    The boiling point of water decreases as altitude increases -- generally, this temperature decreases by one degree for every 540 feet of altitude. Learn more about cooking at high altitudes in this podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do cats have whiskers?

    Aug 15 2014

    Cat whiskers, also known as "tactile hairs," are very different from a cat's regular body hair. In this episode, Marshall explains how these hairs are unique and what cats use them for. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Color Blindness Works

    Aug 13 2014

    Color blind individuals can suffer from an inability to differentiate between hues, and occasionally may not be able to see any colors at all. Learn more about color blindness in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do limbs fall asleep?

    Aug 11 2014

    Pressure on nerves can cause the nerves to stop sending impulses to the brain, causing limbs to fall asleep. Learn more about limbs falling asleep in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do electric plugs have holes?

    Aug 08 2014

    You might have noticed that plugs for electric appliances have two holes. There are three reasons for these apertures -- find out what they are in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the right way to remove a leech?

    Aug 06 2014

    People have cooked up all sorts of ways to remove leeches over the years, but the simplest is still the most effective. Discover how to safely detach a leech using your hands in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do one-way mirrors work?

    Aug 01 2014

    One-way mirrors are ubiquitous in crime dramas, but how do they work? Discover the secret behind one-way mirrors in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why does lettuce stored in a bag stay fresh longer?

    Jul 30 2014

    Many foods you'll find at the grocery store -- like lettuce, for example -- are stored in special plastic packaging called MAP that helps them stay fresh longer. Find out what MAP is, and how it keeps food fresh longer, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How much sugar do they really put in soda?

    Jul 28 2014

    Sodas and soft drinks contain a surprising amount of sugar -- more than you might expect. Tune in as Marshall Brain reveals how much sugar is in soda in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is market capitalization?

    Jul 24 2014

    If all the money in the US only totals 8 trillion dollars, how can the New York Stock Exchange have stocks valued at 26 trillion dollars? Tune in as Marshall Brain breaks down the practice of stock capitalization in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why can you hear the ocean in a seashell?

    Jul 14 2014

    There are various theories about why you can hear ocean-like sounds when you hold a seashell up to your ear. Marshall Brain explains what you're probably hearing in that seashell -- and why you don't need a shell to hear it -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is an Omega-3 fatty acid?

    Jul 11 2014

    Omega-3 fatty acids are essential to the human body. Tune in to hear Marshall Brain explain the chemistry of fat molecules and fatty acids, Omega-3s in particular, in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What do those diamond-shaped signs on buildings mean?

    Jul 09 2014

    The National Fire Protection Agency, or NFPA, uses these signs to indicate hazardous materials stored in an unknown building. Listen in to learn how the signs work -- and how they help firefighters -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Should you turn your computer off when it's not in use?

    Jul 07 2014

    When it comes to the question of whether or not you should turn off your computer when you're not using it, there's no simple answer. Tune in to get Marshall's thorough take on the topic in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How big is the universe?

    Jul 04 2014

    If all the matter in the universe was pushed into one corner, how much space would it take up? Listen in as Marshall Brain explores the size of the universe in this podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why does hydrogen peroxide foam when you put it on a cut?

    Jul 02 2014

    Hydrogen peroxide's foaming action is due to the catalase in blood and cells. Check out this HowStuffWorks podcast to learn how hydrogen peroxide interacts with catalase. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a medical leech?

    Jun 25 2014

    Medical leeches are raised in captivity and help patients heal wounds. Discover how leeches and other parasites are used for medical purposes in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does water desalination work?

    Jun 23 2014

    Most of the water on the planet is salty, so people have come up with various ways to turn it into freshwater. Explore three methods of desalinating water in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why does my hard drive make that churning sound?

    Jun 20 2014

    Inside the hard drive of many computers, a small arm moves across the face of the hard disk. Tune in to this podcast from HowStuffWorks.com to discover how the movement of this arm produces sound -- and why the arm must move to load files. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do space suits work?

    Jun 11 2014

    Space suits provide oxygen, pressurize air, and control an astronaut's temperature. Learn more about space suits in this classic HowStuffWorks podcast, one of our editors' hand-picked favorites. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a light year?

    Jun 09 2014

    A light year is a way of measuring distance -- specifically, the distance light can travel in one year. Just how far is that? Check out this classic Brainstuff podcast from HowStuffWorks' archives to learn more about astronomy. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do the Northern Lights work?

    Jun 06 2014

    The Northern Lights, also known as the aurora borealis, occur when charged electrons from the sun interact with the Earth's magnetic field. Learn more about auroras and solar activity in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What would happen if the polar ice caps melted?

    Jun 04 2014

    Learn more about melting ice caps, global warming and rising sea levels in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can I recover a deleted file from my computer?

    May 26 2014

    In many cases, it's possible to recover files that have been deleted by using your computer's Recycle Bin. Marshall Brain reveals ways to recover deleted files -- and how to erase them permanently -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Light Wave Interference Works

    May 23 2014

    When white light hits a film of oil floating on water, most of it passes through the film, but some of the light is reflected off the top and bottom layers of the film. Check out this HowStuffWorks podcast to learn more about light wave interference. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Phones Work During Power Outages

    May 21 2014

    Phone companies use generators to ensure that landline phones will work, even in the event of a power outage. Learn more about phone systems in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Liquid Smoke Works

    May 19 2014

    By cooling smoke, the hydrocarbons forming smoke can be condensed, thinned, and bottled in a liquid form. Learn about the process of bottling liquid smoke in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What do the yellow and black wires in a home telephone jack do?

    May 14 2014

    It only takes two wires to connect a phone, but most house wiring contains four wires. Check out this HowStuffWorks podcast to learn why. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What Happens to Blood During the Embalming Process?

    May 12 2014

    The embalming process is designed to keep the body preserved until the funeral, but how exactly does it work and what happens to bodily fluids like blood? Get the gory details in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What makes us yawn?

    May 07 2014

    Yawning is a universal human behavior, yet scientists still don't know exactly why we do it or what purpose it serves. Marshall Brain explores some of the theories behind yawning in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is Windows Safe Mode?

    May 05 2014

    Safe Mode is a feature of the Windows operating system that allows users to load a limited version of the system in order to troubleshoot problems. Learn more about using Safe Mode in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What makes glass transparent?

    May 02 2014

    The transparency of materials has to do with their molecular state. Discover how silica and heat produce the transparent material we call glass in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a blowout preventer?

    Apr 30 2014

    The massive oil spill that flooded the Gulf of Mexico should have been prevented by a fail-safe device called a Blowout Preventer, or BOP. Find out how this safety mechanism is supposed to work -- and why it didn't -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a rice krispy?

    Apr 28 2014

    Like many cereals, rice krispies are made by puffing grains -- in this case, rice. Find out how rice krispies and other puffed cereals are manufactured in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do hopping cars work?

    Apr 25 2014

    Lowriders are vehicles that ride very low to the ground and are often equipped with hydraulics systems that allow the cars to "hop." Learn more in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does hemp work?

    Apr 21 2014

    Hemp fibers are coarse and strong, perfect for things like rope -- hemp is also more environmentally friendly than many other crops. Listen in as Marshall Brain takes a look at the controversy surrounding hemp in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do self-cleaning ovens work?

    Apr 18 2014

    What does it take for an oven to clean itself? A whole lot of heat! Marshall Brain explains how these special ovens use intense temperatures to burn off baking spills and debris in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is low-power FM (LPFM)?

    Apr 09 2014

    FM radio stations have high operating costs, so they're seldom affordable to individuals and small organizations that want to use them for not-for-profit purposes. Find out how LPFM stations work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does satellite Internet work?

    Apr 07 2014

    If you're trying to access the Internet in a very rural or remote place, satellite Internet is probably your best bet. In this episode, Marshall explains how satellite Internet works. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is an IP address?

    Apr 02 2014

    Every computer that's connected to the Internet has its own unique "address." Tune in as Marshall explains how IP addresses work -- and how many of them exist -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What happens when pregnant women smoke cigarettes?

    Mar 31 2014

    When pregnant women smoke, they expose their developing babies to a host of addictive, harmful chemicals. In this episode, Marshall Brain explains how nicotine and other compounds found in cigarettes affect developing fetuses. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a funicular railway?

    Mar 28 2014

    A funicular railway combines the technology of an elevator and a train. But how do they actually work? Learn more about these fascinating railways -- and how old they are -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How are LCD screens backlit?

    Mar 26 2014

    In this episode, Marshall explains the two technologies that are used to backlight LCD panels. Tune in to learn more about the science behind LCD panels. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a stratospheric aerosol?

    Mar 24 2014

    Stratospheric aerosols have been proposed as a new way to combat global warming -- but what's the science behind this proposal? Discover how stratospheric aerosols would work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Tiny Houses

    Mar 19 2014

    Tiny houses are part of a growing trend, but why would someone want an itty bitty house? In this episode, Marshall talks about the benefits and challenges of building a tiny home. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a Nor’easter?

    Mar 10 2014

    Nor'easters are storm systems that frequently occur in the eastern United States during winter. In this episode, Marshall explains where Nor'easters get their name, how they work and why some Nor'easters are more powerful than others. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do smoke detectors intercommunicate?

    Mar 07 2014

    Some AC-powered smoke detectors are wired to communicate with each other. So when one unit is triggered, all of the units go off. Find out how this intercommunication works in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where did the potato chip come from?

    Mar 05 2014

    Potato chips were invented in 1853 by an American cook named George Crum, and they've been a popular food item ever since. Learn more about George Crum and the evolution of the potato chip in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What causes poison ivy blisters?

    Mar 03 2014

    When people get a rash from poison ivy, their bodies are reacting to a chemical called urushiol. Check out this HowStuffWorks podcast to learn more about poison ivy rashes. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do mood rings work?

    Feb 28 2014

    Mood rings claim to reflect changes in your emotional state -- and, in a way, they do. Discover the science behind mood rings in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What makes your knuckles pop?

    Feb 26 2014

    Learn more about the anatomy (and chemistry) behind that popping sound your knuckles make when you crack them in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could I see a flashlight beam from Earth on the moon?

    Feb 24 2014

    If you shone a flashlight beam from Earth, would you be able to see it from the moon? It depends. Find out why -- and get a lesson in how light works -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do tools have "drop forged" stamped on them?

    Feb 21 2014

    Tools that say "drop forged" have been created using a technique called drop forging. Find out how drop forging and several other kinds of forging work, and why drop forging is a sign of a sturdy tool, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does the lighter in a barbeque grill work?

    Feb 19 2014

    A barbeque grill has a push-button lighter that relies on piezoelectricity to generate a spark. Learn more about how piezoelectricity works -- and the kinds of devices that use piezoelectric materials -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can you measure the height of a tall tower?

    Feb 17 2014

    In this episode of BrainStuff, Marshall reveals three common techniques for measuring the height of tall objects like towers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why does the moon look bigger when it's near the horizon?

    Feb 14 2014

    When the moon is near the horizon, it appears to be much bigger than when it's high in the sky. But is it really larger? Tune in to find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do photochromatic lenses work?

    Feb 12 2014

    Photochromatic lenses darken when exposed to the sun. Discover where these lenses came from, how they work and why they're commonly referred to as "transition" lenses in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a movie clapperboard work?

    Feb 10 2014

    A movie clapperboard isn't just a placemarker; this device helps movie makers synchronize a movie's audio and video elements. Find out how a traditional movie clapperboard works, as well as a digital one, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why doesn't gasoline burn cleanly?

    Feb 08 2014

    Since gasoline is a liquid formed of carbon and hydrogen, it's possible to trace the chemical reactions in car exhaust and understand what types of pollutants are created by a car's engine. Tune in and learn more about the science behind burning gas. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do jet engines start?

    Feb 05 2014

    If you've ever watched a jet engine start, you've probably noticed that the blades begin to rotate slowly before spinning up to full speed -- but why? Listen in as Marshall Brain breaks down the science behind jet engines in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can cans and string really be used like a telephone?

    Feb 03 2014

    You've probably heard of this trick before: Connecting two cans with a piece of string in the bottom of each can will supposedly allow people to speak over a distance to one another. Tune in as Marshall Brain explains how it works in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is making my backyard sparkle at night?

    Jan 31 2014

    One night, Marshall went outside with a headlight lamp on his head and discovered that his backyard was full of sparkling reflections. What were these sparkles? Discover the surprising answer in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What can you do to make yourself really unhappy?

    Jan 29 2014

    There are lots of articles and research on happiness these days, but what about unhappiness? What makes us unhappy, and will avoiding it make us happy? In this episode, Marshall points out three behaviors that are sure to create unhappiness. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the difference between hardwood and softwood?

    Jan 15 2014

    When it comes to differentiating between hardwoods and softwoods, it's not a matter of hardness or density -- it's all about plant reproduction. Marshall explains what angiosperms and gymnosperms are in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do stabilizer bars work?

    Jan 08 2014

    Stabilizer bars are designed to keep your car from rolling when you make sharp turns. Learn more about how these bars work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a CB radio antenna work?

    Jan 03 2014

    A citizens band (CB) radio is often used by truck drivers to communicate while on the road, but how does it work? Marshall Brain gives a detailed explanation of how a CB radio's antenna works in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • When you have an itch, what's happening under your skin?

    Jan 01 2014

    Skin covers our bodies, so it's very easy for this delicate organ to get irritated. In this episode, Marshall explains why our bodies respond to irritants with an itching sensation -- and why we're programmed to scratch. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a digital signature?

    Dec 30 2013

    A digital signature is a way to authenticate electronic documents. Find out what 'authentic' means in this context -- and how encryption is involved in the authentication process -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do some engines use a dry sump oil system?

    Dec 27 2013

    Most car engines use a wet sump oil system, but some rely on a dry sump system. Find out how a dry sump system works -- and why it's advantageous -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are carbide tips?

    Dec 25 2013

    Many cutting tools are made of materials like steel but have carbide tips, which stay sharper longer. Learn more about carbide tips in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is it possible to use a leaf blower as a supercharger?

    Dec 23 2013

    Leaf blowers are convenient, but are they living up to their potential? In this podcast, Marshall examines superchargers, explaining how a leaf blower can (theoretically) perform the same duties. Tune in and learn more about hacking leaf blowers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a QWERTY keyboard work?

    Dec 20 2013

    The QWERTY keyboard is the standard for most computers today, but why are the letters arranged in such a peculiar way? Learn more about the QWERTY keyboard's unusual layout -- and how it compares to the Dvorak design -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a fiber optic cable work?

    Dec 18 2013

    Fiber optic cables make long-distance telephone communication and Internet access much more affordable and accessible. Get Marshall's explanation of fiber optic cables in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does airing out mattresses outside do any good?

    Dec 16 2013

    Airing out rugs and mattresses outdoors is a great way to disinfect them, thanks to a little thing called ultraviolet light. Find out how UV light can disinfect everything from rugs to water in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Lava Lamps Work

    Dec 13 2013

    Liquid motion lamps -- or lava lamps -- use heat to create slight differences in the density of two liquids. Learn more about lava lamps and density in this Brainstuff podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Dry Cleaning Works

    Dec 11 2013

    Dry cleaning is not actually clean -- instead, it uses a petroleum solvent in place of water. Learn more about dry cleaning in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Dehumidifiers Work

    Dec 09 2013

    Dehumidifiers remove moisture from the air -- but how does this actually work? Check out this HowStuffWorks podcast to learn more about dehumidifiers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Does Yawning Work?

    Nov 27 2013

    Just hearing about yawning can make you yawn, and no one is sure why. Learn more about yawns and yawning in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How the Nobel Prize Works

    Nov 22 2013

    Nobel Prizes are highly prestigious, valuable awards that have been given out to visionaries and pioneers in select fields since 1901. Tune in to find out more about the Nobel Prize in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What constitutes a person's IQ?

    Nov 20 2013

    Your IQ, or intelligence quotient, is a reflection of how well you perform on a specific test that measures cognitive abilities. Learn more about IQ tests in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What type of gas do racecars use?

    Nov 13 2013

    Different types of racing vehicles require different types of fuel. Check out this HowStuffWorks podcast to learn more about the advantages and drawbacks of each fuel type. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do you make clear ice cubes?

    Nov 06 2013

    What makes some ice cloudy and some perfectly clear? Discover the answer and learn how to make your own batch of clear cubes in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the ideal temperature for a refrigerator?

    Oct 28 2013

    The purpose of a refrigerator is to slow the growth of bacteria -- since some foods don't freeze well, they can't be placed in a freezer. Check out this HowStuffWorks podcast to learn the ideal temperature for your refrigerator. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does adding RAM make a computer faster?

    Oct 25 2013

    Adding random access memory -- or RAM -- to your computer can, to a degree, make the machine faster. Check out this podcast from HowStuffWorks to learn how RAM affects your computer. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does 'octane' mean?

    Oct 23 2013

    The octane rating of gasoline indicates how much a fuel can be compressed before it ignites. When gas ignites due to compression, knocking occurs within the engine. Check out this HowStuffWorks podcast to learn more about octane and engines. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Case Hardening Works

    Oct 21 2013

    Steel is an amazing metal. Many different varieties of steel exist, and some types of steel are better for certain tasks. Check out this HowStuffWorks podcast to learn how case hardening allows manufactures to get the best of multiple types of steel. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do batteries die but then come back to life?

    Oct 18 2013

    Batteries -- particularly car batteries -- seem to go dead and then come back to life after a resting period. How does this self-recharging feature of batteries work? Find out in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How the Horizon Works

    Oct 11 2013

    When you stand at the water's edge and look out toward the horizon, how far away can you actually see? Check out this HowStuffWorks podcast to learn more about the horizon and the curvature of Earth. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do V-chips work?

    Oct 04 2013

    As of 1999, all TV sets sold in the Untied States are required to contain a viewer-control chip, also known as a v-chip. Check out this HowStuffWorks podcast to learn more about v-chips and television ratings. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does hair length work?

    Sep 30 2013

    As hair cells form in follicles, they push other cells out of the follicle. Check out this HowStuffWorks podcast to learn more about your hair's growth and rest phases. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do vacuums work?

    Sep 27 2013

    If a balloon was filled by a vacuum -- rather than helium or air -- would it float? Check out this HowStuffWorks podcast to learn the science behind balloons and vacuum. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does gravity assist with interplanetary satellites?

    Sep 25 2013

    The idea behind a gravity assist is to use a planet's motion to accelerate a satellite. Check out our article on HowStuffWorks to learn more about the effects of gravity on satellites. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does large-scale power storage work?

    Sep 23 2013

    Wind farms and solar power plants are promising sources of renewable energy, but they're not as reliable as conventional power sources. In this episode, Marshall explains how large-scale storage technologies could make solar and wind power more viable. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can I gain pounds during the day and lose them at night?

    Sep 18 2013

    Water is a very heavy substance -- just one gallon weighs 8 pounds. Check out this HowStuffWorks podcast to learn more about how the passage of water affects your weight. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How much does it cost to run an electric blanket?

    Sep 13 2013

    The electric company bills its customer by the kilowatt-hour. The number of watts a device uses times the number of hours you leave it on tells you number of watt-hours it consumes, and divided by 1,000 will convert the measurement to kilowatt-hours. Listen to find out more in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do hurricanes follow such peculiar tracks?

    Sep 06 2013

    Hurricanes are enormously destructive, and sometimes seem to have a mind of their own. Tune in to this HowStuffWorks podcast to learn more about hurricanes. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do Heart Bypass operations work?

    Sep 04 2013

    Since the heart is a muscle, it relies on the oxygen and nutrients contained in blood. This blood is supplied by arteries on the exterior of the heart -- when these arteries are blocked, a heart attack results. Listen to find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Inkjet Printers Work

    Sep 02 2013

    Inkjet printers shoot extremely small droplets of ink -- thirty dots per millimeter or more -- onto paper to produce a picture. Check out this HowStuffWorks podcast to learn more about inkjet printers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does the VTEC system do?

    Aug 30 2013

    Every gasoline engine has valves that work with the camshaft to let air into and out of the engine. Learn how VTEC -- Variable Valve Timing and Lift Electronic Control -- allows engines to adapt their camshafts in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How quickly does hair grow?

    Aug 28 2013

    On average, human hair grows a small amount each day. Listen in as Marshall Brain explains hair growth in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do gun silencers work?

    Aug 26 2013

    The sound of gunfire is incredibly loud, and it is amazing that anything is able to silence a firearm. However, the principle behind a gun silencer is surprisingly simple. Check out our HowStuffWorks article to learn more about silencers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do exhaust headers work to improve an engine's performance?

    Aug 16 2013

    The goal of headers is to make it easier for an engine to push out exhaust gasses. Check out this HowStuffWorks podcast to learn how exhaust headers channel exhaust gasses and improve engine efficiency. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What causes high tide and low tide?

    Aug 09 2013

    The moon's gravitational pull is strong enough to affect the oceans on Earth, resulting in low and high tides. Discover exactly how high and low tides work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why doesn't the space shuttle burn up upon re-entry?

    Aug 05 2013

    Meteors burn up once they hit Earth's atmosphere, and the space shuttle would do the same if it wasn't protected. Learn more about meteors and the technologies that keep the space shuttle from burning up in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is fertilizer, and why do plants need it?

    Aug 02 2013

    In order for a plant to grow and thrive, it needs a number of different chemical elements. Check out this podcast from HowStuffWorks to learn more about fertilizer. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do the engines breathe in diesel submarines?

    Jul 31 2013

    Diesel submarines are actually hybrid vehicles. Find out why -- and exactly how they work -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a tank engine?

    Jul 15 2013

    You've probably heard of the beloved character Thomas the Tank Engine, but have you ever wondered what makes him a tank engine? Discover what sets Thomas apart from his locomotive pals in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What exactly is a blueprint?

    Jul 12 2013

    Blueprinting, which has been around since 1842, is a common way to reproduce an architectural drawing. Tune in to learn more about the complex chemical processes that make blueprints blue -- and white -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a chicken's egg get its shell?

    Jul 10 2013

    Which came first -- the chicken or the egg? Listen in as Marshall Brain gives the technical answer -- and takes a look at the science behind eggshell formation -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where do bullets go when guns are fired into the air?

    Jun 19 2013

    When people fire guns into the air in a celebratory manner, those bullets have to go somewhere. Find out how high fired bullets can go -- and why they can be dangerous -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does pressure-treated lumber work?

    Jun 17 2013

    organisms. Find out why pressure-treated lumber holds up better -- and how it works -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do Mexican jumping beans work?

    Jun 12 2013

    Although Mexican jumping beans don't actually jump, they're definitely more active than your average bean. Find out how a moth makes them move in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a hybrid car work?

    Jun 12 2013

    Hybrid cars combine electric motors and smaller gasoline engines in an attempt to increase efficiency. Find out exactly how they work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does an Indiglo watch work?

    May 28 2013

    An Indiglo watch works a lot like a neon sign, getting its signature "glow" from electroluminescence. Tune in to hear Marshall Brain explain the finer points of Indiglo watch technology in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What makes NASCAR engines different from other engines?

    May 28 2013

    NASCAR engines are built for maximum efficiency, and they're much more powerful than regular engines. Marshall Brain discusses five ways in which NASCAR engines differ from regular ones in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do torpedo engines work if they're underwater?

    May 27 2013

    Torpedo engines rely on special methods of propulsion to operate underwater. Find out what they are in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a Crooke's radiometer work?

    May 23 2013

    Vacuums and light combine to power a Crooke's radiometer -- but how does it work? Listen in and learn more about the mechanisms inside the radiometer in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is Friday the 13th considered unlucky?

    May 22 2013

    In countries like the United States, people have a superstitious fear of one particular date: Friday the 13th. But why? In this episode, Marshall discusses the two main fears that have fueled the Friday the 13th superstitions, as well as their origins. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the best way to back up a computer's hard disk?

    May 03 2013

    Your computer's hard disk stores all your information, but what happens if it gets damaged or dies? In this episode, Marshall Brain explains why it's important to back up your hard disk and weighs the advantages and disadvantages of three backup methods. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does bulletproof glass work?

    May 01 2013

    Bullet-resistant glass, commonly referred to as ""bulletproof,"" is a special type of glass designed to resist bullets. Tune in to this episode to learn how different types of bullet-resistant glass work. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does tear gas do?

    Apr 29 2013

    You've probably heard of tear gas before, but did you know that Mace is a form of it? Learn more about the three commonly used types of tear gas -- how they work and what they're used for -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are the fastest hard disks available today?

    Apr 24 2013

    Hard disk drives and connections have been getting faster and faster. In this episode, Marshall discusses the evolution of the hard disk and the shockingly fast drives available today. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why should you wash new clothes before wearing them?

    Apr 05 2013

    Some clothes have tags that say "wash before wearing" or "wash separately." Find out why it's sometimes a good idea to wash new clothes before you wear them in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How cell phones work

    Mar 15 2013

    Today's cell phones are amazingly compact, complex devices that provide a wide array of services. Discover the origins of these technological wonders, and the technology that makes them work, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a toaster work?

    Mar 13 2013

    Toasting is a tasty way to increase the durability of bread, and automatic toasters are a convenient way to make toast. Learn more about the chemical change that turns bread into toast and the mechanism behind toasters in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do most cars use gasoline instead of diesel?

    Mar 08 2013

    Diesel engines are more efficient than engines that run on gasoline, yet they've never really caught on in passenger cars in the United States. Discover the many reasons why diesel engines aren't the norm in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does Caller ID work?

    Mar 04 2013

    Almost all cell phones have a capacity for caller ID, which identifies the phone number at the other end of a telephone connection -- but how does it work? Listen in as Marshall Brain breaks down the basics of this surprisingly simple technology. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where did the hamburger get its name?

    Feb 01 2013

    The word 'hamburger' seems to imply that pork is a main ingredient, but in fact, this famous beef sandwich got its name from a city. Learn more about the origins and spread of the hamburger in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What gives a Harley its distinctive sound?

    Jan 28 2013

    A Harley Davidson motorcycle emits a very distinctive sound because of the unique way its engine works. Find out more in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Does drinking ice water burn calories?

    Jan 18 2013

    When you drink cold water, your body exerts an effort to warm up the liquid and, in doing so, burns calories. So does that make drinking ice water an effective weight loss strategy? Find out in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the problem with MTBE in gasoline?

    Jan 14 2013

    Some gasoline contains MTBE, or methyl tertiary butyl ether. Find out why MTBE is added to gasoline in the first place, and why it's no longer a popular additive, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why does a manual transmission make a whirring noise?

    Jan 09 2013

    When manual transmissions are put in reverse, they produce a loud, whirring noise. What's the culprit? Gears. Marshall Brain explains how helical and spur gears work in manual transmissions in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the Strategic Petroleum Reserve?

    Jan 07 2013

    The Strategic Petroleum Reserve is the world's largest emergency oil stockpile. But why do we have it? Where do we keep it? Find out why the United States created this reserve and where the oil is stored in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does the Radio Data System work?

    Jan 04 2013

    The Radio Data System, or RDS, allows your radio to display information like song titles and radio station call signs. Find out how the RDS works in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does residential real estate work?

    Dec 19 2012

    There are many different types of residential real estate: traditional houses, condos, mobile homes, etc. But what's the difference between these types? Marshall Brain breaks it down for you in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does the public option work?

    Dec 10 2012

    In the current U.S. debate over health care reform, a government-sponsored public option has been a controversial topic. Tune in to this episode of BrainStuff to hear Marshall Brain explain the nuances and implications of the public option. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can the grass on a golf course green be so perfect?

    Dec 07 2012

    The greens on a golf course are famously smooth and perfect-looking, but how do they get that way? Discover how careful planning, the right ingredients and a whole lot of maintenance yield a flawless green in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do they add iodine to salt?

    Nov 30 2012

    Table salt contains iodine to help prevent thyroid problems and iodine deficiencies. Find out how table salt keeps your thyroid happy -- and what iodine has to do with a nuclear attack -- in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does RSVP mean?

    Nov 14 2012

    Most people are familiar with the concept of replying to a party invitation via R.S.V.P., but what exactly do those letters represent? Learn more about the origins and practices of etiquette in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does gravity work?

    Oct 24 2012

    Gravity affects us every single day, but how does this oh-so-common force of nature work? Tune in to this podcast from HowStuffWorks.com to take a look at the nuts and bolts of gravity. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is there a small hole on the top of spray can lids?

    Oct 22 2012

    Many spray can lids have a tiny hole at the top. Check out this HowStuffWorks podcast to learn more about spray cans, shipping and air pressure. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why doesn’t the vacuum of space suck away Earth’s atmosphere?

    Oct 01 2012

    It's often said that "nature abhors a vacuum." If that's true, then why doesn't the vacuum of space suck away our atmosphere? Tune in as Marshall Brain explains the science behind vacuums in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Replacing Toilets Work

    Sep 28 2012

    A family of four can consume more than 300 gallons of water per day. Old toilets use 5 gallons per flush, and this water use quickly adds up. Check out this HowStuffWorks podcast and learn why cities across the US are replacing their old commodes. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What do those plastic recycling symbols mean?

    Sep 21 2012

    A typical recycling symbol on plastic looks like a triangle made of arrows. There are seven different types of plastic indicated by the symbols. Check out this HowStuffWorks podcast to learn the difference between each of these plastic types. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a Fresnel lens work?

    Sep 17 2012

    The thin piece of plastic called a Fresnel lens solves some of the problems inherent in traditional magnifying lenses. Learn more about the benefits and weaknesses of Fresnel lenses in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What makes your arms, legs and feet fall asleep?

    Aug 31 2012

    When you put prolonged pressure on your feet, arms or legs, you temporarily cut off or scramble communications between your brain and your body parts. Marshall explains exactly what happens when body parts "fall sleep" in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is the Nissan Leaf such a big deal?

    Aug 27 2012

    Nissan recently released the Leaf, a model which may be the first viable electric car to come on the market. How does it work? Why do people have high hopes for it? Tune in to this podcast from HowStuffWorks.com to find out more about the Nissan Leaf. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What do the brake warning lights mean in my car?

    Jul 20 2012

    The brake warning lights in your car light up as part of a routine test. When they stay on, they indicate that there's something wrong with your brake system. Learn more about brake warning lights in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How much does 20-pound bond paper weigh?

    Jul 18 2012

    Your average ream of printer paper is called 20-pound bond paper, but it doesn't actually weigh 20 pounds. Tune in as Marshall explains this strange American paper naming system -- and its metric alternative -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does Christmas work?

    Jul 09 2012

    Christmas is the biggest holiday on the American calendar -- but how did it get this way? Travel back in time with Marshall Brain as he explores the evolution of Christmas in this special holiday episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why are West Coast waves bigger than East Coast waves?

    Jul 06 2012

    The West Coast of the United States seems to produce bigger, more impressive waves than the East Coast. But why? In this episode, Marshall explains the various factors that make West Coast waves bigger and better. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a T1 line and how does it work?

    Jul 04 2012

    A T1 line is a dedicated fiber optic or copper cable that provides businesses with far more digital data than a residential line. Discover how T1 and other kinds of fiber optic lines work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do you decaffeinate coffee and tea?

    Jun 29 2012

    There are multiple methods of removing caffeine from naturally caffeinated plant products. Learn more about these processes -- and how much caffeine they really remove -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do Voyager 1 and 2 transmit messages from far away?

    Jun 27 2012

    Spacecraft Voyager 1 and Voyager 2 transmit images of space and its contents from great distances, but how? Learn more about the technology that allows them to send radio messages from far, far away in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do Power Balance Wristbands really work?

    Jun 22 2012

    Do Power Balance Wristbands really work? Find out in this BrainStuff podcast by Marshall Brain. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the most efficient way to mow your yard?

    Jun 13 2012

    There's more than one way to mow a yard, but which is the most efficient? Tune in to this episode of BrainStuff to find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does disk defragmentation work?

    Jun 06 2012

    The term 'disk defrag' usually refers to the Windows utility known as the disk defragmenter. But what exactly is this thing, and how does it work? Tune in as Marshall Brain explains disk defragmentation in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do space mirrors work?

    Jun 01 2012

    Mirrors placed in space could deflect excessive sunlight and combat global warming trends. Find out more about space mirrors in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do newspapers turn yellow over time?

    May 21 2012

    Newspapers turn yellow over time because they contain lignin, a substance in wood that oxidates when exposed to air and light. Learn more about lignin and paper processing in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do eggs turn hard when you boil them?

    May 11 2012

    Eggs are rich in protein, and this protein causes eggs to turn hard when they're boiled - but how does it actually work? Tune in as Marshall Brain breaks down the science behind hard-boiled eggs. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do you add a USB device if you've run out of ports?

    Apr 27 2012

    Desktop computers and laptops only have so many USB ports, so what do you do when you want to plug in more USB devices and they're all full? You buy a USB hub. Find out how these hubs work, and which kind you should get, in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is an autograph worth?

    Apr 23 2012

    An autograph is a famous person's signature, but what determines how valuable it is? Marshall Brain discusses the relative value of autographs -- and what you can do to increase the value of your own signature. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are electrolytes?

    Apr 20 2012

    What are electrolytes, and why do athletes and sick kids need them? Marshall Brain explains how ions and electrolytes work in your body in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do most zippers say 'YKK' on the pull-tab?

    Apr 13 2012

    Have you ever wondered why zippers often have the letters 'YKK' etched into them? Learn more about the Japanese company behind the tiny letters -- and the zippers -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How much coal does a light bulb need to run for a year?

    Apr 09 2012

    How much coal do you need to run a 100-watt light bulb 24 hours a day for a year? The answer might surprised. Tune in and find out in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is mayonnaise?

    Apr 06 2012

    Mayo is an emulsion - a mixture of two liquids that normally can't be combined. So how do these ingredients come together? Tune in to learn how oil, egg yolks and acid combine to form one of the world's most popular condiments. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is there an easy way to understand how time zones work?

    Apr 04 2012

    There are 24 different time zones -- but why do we have them? In this podcast, Marshall recounts how society evolved time zones, and also gives you an easy way to model the structure of time zones across the globe. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can picking a movie theater get any more complicated?

    Mar 19 2012

    With all the recent technological breakthroughs, choosing the right movie theatre has become increasingly complex. Why? Listen in as Marshall breaks down the different sound and video technologies available in modern movie theaters. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does emergency preparedness work?

    Mar 16 2012

    In moments, a natural disaster can level cities, kill thousands and force survivors to scavenge through the rubble for supplies. In this podcast, Marshall discusses the importance of preparedness and the types of supplies you may need in an emergency. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why can biting on aluminum foil be painful?

    Feb 08 2012

    When (dental) metal in your mouth comes in contact with aluminum foil, your teeth get a painful shock from the electricity produced. Marshall Brain explains how the voltaic effect plays out in your mouth in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does WikiLeaks work?

    Jan 27 2012

    WikiLeaks is a controversial "not-for-profit media organization" that disseminates secret, leaked information to the public. But how exactly does this group work? And why does it exist? Marshall Brain takes a look at WikiLeaks in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are all blood types needed for donation?

    Jan 18 2012

    In this episode, Marshall explains how proteins determine your blood type -- and why blood types must match for blood transfusions to be successful. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Japan's Nuclear Problem

    Dec 28 2011

    When the recent earthquake hit Japan, it seemed the country had withstood the worst of the blast -- until explosions occurred at a nuclear power plant. Is another disaster on the way? Tune in as Marshall explains the state of Japan's nuclear power plants. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does a gigabyte of internet access really cost?

    Dec 23 2011

    Internet service providers often tangle with customers who claim they're being ripped off -- but how much does a gigabyte of access actually cost? Join Marshall Brain as he breaks down the real cost of a gigabyte's worth of internet access. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Which 4G services are available in the U.S. today?

    Dec 21 2011

    If you have a smart phone, you may be interested in 4G service for the data you receive. But which services are available, and which one will suit your needs? Listen in as Marshall Brain breaks down the differences between 4G services. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is a cell phone called a cell phone?

    Dec 19 2011

    Cellular phone systems divide areas of coverage into "cells," hence the name. But how do they actually work? Listen in as Marshall Brain breaks down the nuts and bolts of cell phone systems in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does the oxygen sensor in a car work?

    Dec 14 2011

    All new cars sport oxygen sensors that are designed to cut down emissions and keep the engine running smoothly. Find out exactly how these sensors work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why can I play some DVDs, but not others?

    Dec 02 2011

    Film studios use regional code protection in DVD technology to protect content and to control worldwide release dates. Tune as Marshall Brain breaks down the concept of region codes in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do CD-R discs work?

    Nov 30 2011

    Unlike a regular CD, a CD-R has a special dye layer that allows you to imprint data on it. Discover the mechanics of CD-R discs in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is chocolate poisonous to dogs?

    Nov 16 2011

    Under the right conditions, chocolate can indeed be deadly for dogs. Tune in to learn more about the compound in chocolate that makes it dangerous for dogs (and how much is too much) in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can there be seedless grapes?

    Nov 14 2011

    Seedless grapes are the most common kind on the market, but have you ever wondered how a grape can be seedless? How does it grow? Discover how seedless grapes accidentally came about -- and how they grow -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do self-driving cars work?

    Oct 24 2011

    Self-driving cars seem like the stuff of science fiction, but they're closer to becoming reality than you might think. In this episode, Marshall breaks down the technology behind experimental self-driving cars. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do British royal titles work?

    Oct 07 2011

    In this episode of BrainStuff, Marshall Brain gives a detailed explanation of how British royal titles work. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do they include jokers in a deck of playing cards?

    Oct 03 2011

    The joker is an obscure and (according to some) useless addition to a deck of modern playing cards -- but it was originally a powerful card. Discover the history of the joker card and the modern card deck in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is dynamite? How does it work?

    Sep 28 2011

    Dynamite is a type of chemical explosive. Discover how explosives from gasoline to dynamite work in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is dry ice dangerous?

    Sep 26 2011

    Dry ice is different from regular ice in several ways. Find out what makes dry ice so unique -- and why it's so good for transporting perishables over long distances -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How can a car get 100 MPG?

    Sep 05 2011

    Created in the 1980s, the Avion is a car that can get more than 100 miles per gallon. In this episode, Marshall Brain talks about the factors that make the Avion so efficient -- and how the same techniques could be applied to production vehicles. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Jelly, Jam and Preserves Work

    Sep 02 2011

    Jam, jelly, and preserves are all made from fruit mixed with sugar and pectin. Jell-O, on the other hand, is completely different. Take a look at our HowStuffWorks article to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What happens when you press Alt and F4?

    Aug 26 2011

    The alt-f4 key combination is a faster way to close a window on your computer. Learn more about this and several other keyboard shortcuts in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Where's the best place to sit in a movie theater?

    Aug 22 2011

    When it comes to where you should sit in a movie theater to get the best experience, it's mostly a matter of preference. Except when it comes to sound. Find out why -- and where you should sit -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why is bamboo suddenly appearing in so many products?

    Aug 15 2011

    Nowadays bamboo is used to make all sorts of products, from flooring and furniture to bicycle frames. In this episode, Marshall explains why bamboo is becoming so popular -- and the advantages of using it to create consumer goods. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Internet Cookies Work

    Aug 03 2011

    Internet cookies are information stored as text strings on a machine by a web server. Most commonly, cookies are used to store user IDs. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does making bread work?

    Aug 01 2011

    Bread is a technology for turning hard kernels into a soft foodstuff. Learn more about bread and yeast in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does the ball return work on a pool table?

    Jul 29 2011

    If you've ever played a coin-operated pool table, then you've probably noticed that the table can sense the difference between the cue ball and the other balls in play. But how does this work? Tune in and find out in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do a zebra's stripes act as camoflauge?

    Jul 27 2011

    A zebra's stripes offer protection from predators in the form of camouflage -- and a way to identify individual members within the larger group. Learn more about zebra stripes in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How the Lightsaber Effect Works

    Jul 18 2011

    Unfortunately lightsabers aren't real. The technique used to produce the lightsaber effect is simple, but tedious. Check out this HowStuffWorks podcast to learn more about the special effects behind lightsabers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What type of gas do race cars use?

    Jul 13 2011

    Different types of racing vehicles require different types of fuel. Check out this HowStuffWorks podcast to learn more about the advantages and drawbacks of each fuel type. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Calorie Meters Work

    Jun 24 2011

    It's easy to jump on an exercise machine and watch the calorie meter -- but how accurate are these meters? Learn more about calorie meters in this HowStuffWorks podcast Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are hot dogs made from?

    Jun 22 2011

    Hot dogs were first created in Frankfurt, Germany. But what exactly are they made from? Check out this HowStuffWorks podcast to learn more about the mysterious ingredients of hot dogs. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How much fuel does an airplane use for a trip?

    Jun 10 2011

    A Boeing 747 uses approximately one galloon of fuel per second -- over the course of a ten hour flight, it might burn 36,00 galloons of fuel. How does this compare to a car? Check out this HowStuffWorks podcast to learn more about airplane mileage. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Contrails Work

    Jun 01 2011

    The clouds that some jets form on certain days are called condensation trails -- or contrails. Check out this HowStuffWorks podcast to learn more about condensation, weather and jets. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How big does a meteor have to be to reach the ground?

    May 27 2011

    If you've spent much time looking up at the night sky, then you've probably seen some spectacular meteor showers. But how big do these things have to be make it through Earth's atmosphere and reach the ground? Tune in and find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is there any way to see orbiting satellites?

    May 25 2011

    Satellites are fascinating, but for most people they're somewhat mysterious. They float somewhere in space, invisible to the naked eye -- or are they? In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: May 6th, 2011

    May 06 2011

    With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: April 29th, 2011

    Apr 29 2011

    With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: April 22nd, 2011

    Apr 22 2011

    From the Dukan Diet to gigantic super organisms, there's no shortage of fascinating news stories each week -- so how can you keep track of the best? Never fear: Tune in as Marshall catches you up to speed with his weekly news roundup. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: April 15th, 2011

    Apr 15 2011

    With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: April 7th, 2011

    Apr 08 2011

    With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How many people does it take to do a Formula 1 pit stop?

    Apr 06 2011

    If you've ever seen a Formula 1 race, then you know the race isn't just between cars -- it's also between pit stop crews. In seven seconds these crews perform an entire pit stop. But how does it work, and how many people does it take? Tune in to find out. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: April 1st, 2011

    Apr 01 2011

    With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: March 25th, 2011

    Mar 25 2011

    From streaming photo albums to Rebecca Black, this week has been chock-full of fascinating (or, at least in Rebecca's case, unavoidable) events. Tune in as Marshall Brain helps you catch up on the latest and most interesting news from around the world. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: March 18th, 2011

    Mar 18 2011

    As the nuclear situation in Japan continues to deteriorate, Marshall explores how a similar earthquake could affect the United States. And that's not all: Tune in and catch up on the latest, most fascinating news of the past week in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: March 4th, 2011

    Mar 04 2011

    Want to catch up on the biggest news stories of the week? If so, tune in as Marshall Brain analyzes the latest breaking news from around the world in this weekly news roundup. Tune in to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup: February 25th, 2011

    Feb 25 2011

    Will the USB port become a thing of the past? How far will the price of solar power fall? Join Marshall Brain as he brings you the latest world news, from the death of the Guinea worm or the growth of private space exploration. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup 2-18-2011

    Feb 18 2011

    From Jeopardy's first nonhuman contestant to the secret recipe for Coca-Cola, this week has been packed with fascinating stories. Tune in as Marshall helps you catch up on the week's most interesting news. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup No. 2

    Feb 11 2011

    Each Friday, Marshall Brain brings you the latest news of the week in one handy podcast. Want to know what's shaking in the world of technology, science and more? Then tune in for a dose of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Marshall Brain's News Roundup No. 1

    Feb 04 2011

    What's the deal with the UFO sighting in Jerusalem? Will the high schools of the future be filled with telepresence robots? Tune in and join Marshall Brain as he reviews the week's most fascinating news. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Anti-reflective Coatings

    Jan 17 2011

    Anti-reflective coatings are used to eliminate any light reflective off the back of the lenses. Learn about anti-reflective coatings in this BrainStuff episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the coolest stuff from the 2011 edition of CES?

    Jan 10 2011

    When it came to gadgets, the 2011 Consumer Electronics Show did not disappoint. But which new products were the coolest? Tune in as Marshall Brain breaks down the latest and greatest of the CES in this podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a cyberwar, and what tactics do cyber warriors use?

    Dec 20 2010

    Modern warfare has expanded beyond its tradtional venues and tactics, infiltrating the world of cyberspace. In this episode, Marshall discusses the many forms of cyber warfare, from computer hacking to viruses. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is it possible to get free land and free houses in the U.S.?

    Dec 17 2010

    In the 1860s, the Homestead Act provided free land to settlers. Is there anything like that in 2010? In this episode, Marshall explains why and how it's possible to acquire land and houses for free -- or really cheaply -- in the United States today. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is there a way to make my sunglasses scratch-resistant?

    Dec 06 2010

    Sunglasses have various special coatings: Some are reflective, while others are scratch-resistant. In this episode, Marshall explains how these different coatings work. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • how does a direct-injection 2-stroke engine work?

    Nov 22 2010

    In a previous episode, Marshall explained how 4-stroke, direct-injection engines work; In this one, he takes a look at 2-stroke engines that utilize direct injection technology. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How did instant cameras work?

    Oct 15 2010

    Instant cameras made it possible to see a photograph almost immediately after you'd taken it. But how? In this episode, Marshall explains the chemical processes behind regular and instant photographic film. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is a Nor'easter?

    Sep 24 2010

    Nor'easters are storm systems that frequently occur in the eastern United States during winter. In this episode, Marshall explains where Nor'easters get their name, how they work and why some Nor'easters are more powerful than others. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do they backlight LCD screens?

    Aug 23 2010

    In this episode, Marshall explains the two technologies that are used to backlight LCD panels. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What exactly is jello made from?

    Jul 21 2010

    Jello is tasty, colorful and fun to eat, but what's in it? One of its ingredients, gelatin, comes from animals. Marshall Brain breaks down the chemistry of jello and gelatin in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What's the best way to get Twitter or Facebook followers?

    May 26 2010

    In this episode, Marshall Brain launches the first of a series of experiments with social media. Tune in to learn more about the new BrainStuff Twitter and Facebook accounts and Marshall's social media experiments. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • When I pay for groceries by check, where does that check go?

    May 14 2010

    When you write a check to purchase goods and services, it passes through the hands of several banks before the process is complete. Marshall explains how checks are processed through intermediary banks in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Is it harmful to breathe 100 percent oxygen?

    May 03 2010

    Oxygen is a necessary component of the air we breathe; but in its pure form, it can be hazardous to one's health. Marshall Brain explains how breathing pure oxygen harms the human body in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • how do I know if my catalytic converter has failed?

    Apr 09 2010

    An automobile's catalytic converter uses a catalyst to convert harmful exhaust fumes into harmless ones. Find out what happens when your catalytic converter stops working properly -- and how you can tell -- in this episode. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do blimps work?

    Feb 16 2010

    Tune in to this episode of BrainStuff to learn more about blimps, from how they work to why they're a popular medium for advertisin Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does a gas pump know when the fuel tank is full?

    Jan 20 2010

    If you've ever put gas in a car, you've probably noticed how the gas pump shuts off when your tank is full. But how does it know to do that? Learn more about the clever mechanism that keeps your gas tank from overflowing in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does the Nobel Prize work?

    Dec 21 2009

    Nobel Prizes are highly prestigious, valuable awards that have been given out to visionaries and pioneers in select fields since 1901. Tune in to find out more about the Nobel Prize in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do satellites orbit the Earth?

    Nov 23 2009

    In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do they measure sea level?

    Oct 26 2009

    Sea level is an important measurement, but it's also a complicated one. Find out why in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do herbicides like Roundup work?

    Oct 21 2009

    Herbicides like Roundup are products that inhibit plant and weed growth in a very specific way. Explore the biochemistry behind glyphosphate-based herbicides in this episode of HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Can grilling meat really cause cancer?

    Mar 23 2009

    Lots of people like to grill their meat, but this popular cooking method has been linked to cancer. Discover how chemical reactions make grilled meat potentially carcinogenic in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How long can a germ live in a room?

    Mar 16 2009

    How long can a germ last outside the body? It depends. Tune in to this podcast from HowStuffWorks.com to find out how different germs fare outside the body. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How do fog machines work?

    Mar 13 2009

    There are several types of fog machines, each with specific advantages and disadvantages. Listen in to learn more about fog machines. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Are florescent bulbs really more efficient?

    Mar 09 2009

    Customers are increasingly choosing long-lasting alternatives to traditional incandescent lights. But are florescent lightbulbs really more efficient than traditional lightbulbs? Listen in and find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Car Thermostats Work

    Mar 06 2009

    Any liquid-cooled car engine has a thermostat that blocks the flow of coolant to the radiator. Learn how the thermostat works to reduce wear, deposits and emissions in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why can boats float on water?

    Mar 04 2009

    If a boat weighs 1,000 pounds, it will sink into the water until it displaces 1,000 pounds of water. Tune in to learn how the shape of a boat allows it to displace enough water to float in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How the Virtual First-Down Line Works

    Mar 02 2009

    Virtual first down lines are used to indicate where play resumes in football -- but how do they work? Listen in as Marshall Brain explains how the technology superimposes a virtual line in this podcast on HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is dioxin?

    Feb 25 2009

    Dioxin is an organic chemical that consists of benzene, oxygen and chlorine. This chemical is also toxic. Tune in to learn more about dioxin and Agent Orange in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Activated Charcoal Works

    Feb 20 2009

    If you look on the label of a water filter, you'll often see the filter contains activated charcoal -- but what exactly is this stuff? Tune in as Marshall Brain explains the nature of activated charcoal in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How does SETI at home work?

    Feb 11 2009

    SETI -- the Search for Extraterrestrial Intelligence -- is an enormous, global undertaking meant to detect signs of life beyond our solar system. Learn how you can help from home in this podcast from HowStuffWorks. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is silica gel?

    Feb 02 2009

    Everyone's familiar with those little packets of silicate gel, found in thousands of products -- but what exactly do they do? Check out this HowStuffWorks podcast and learn more about silica gel. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why doesn't the vacuum of space suck away Earth's atmosphere?

    Jan 30 2009

    It's often said that "nature abhores a vacuum." If that's true, then why doesn't the vacuum of space suck away our atmosphere? Tune in as Marshall Brain explains the science behind vacuums in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Vacuums Work

    Dec 15 2008

    If a balloon was filled by a vacuum -- rather than helium or air -- would it float? Check out this HowStuffWorks podcast to learn the science behind balloons and vacuum. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is an MRE?

    Dec 12 2008

    An MRE -- or meal ready to eat -- contains precooked, sterilized food originally made to nourish soldiers. Check out this HowStuffWorks podcast to learn more about the retort packaging that makes MREs possible. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Polygraph Machines Work

    Dec 03 2008

    Also known as 'lie detectors,' polygraphs are used to record an individual's vital signs, such as breathing rate, pulse, and so forth. Check out this podcast from HowStuffWorks to learn more about polygraphs and the art of lie detection. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How much fuel does an international airplane use for a trip?

    Nov 21 2008

    A Boeing 747 uses approximately one galloon of fuel per second -- over the course of a ten hour flight, it might burn 36,00 galloons of fuel. How does this compare to a car? Check out this HowStuffWorks podcast to learn more about airplane mileage. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What are MP3 files and how do they work

    Nov 19 2008

    CDs store music using 44,100 16-bit digital samples per second, adding up to about 10 megabytes per minute -- and that's too large to move easily move across the internet. Check out this HowStuffWorks podcast to learn how MP3 files solve this problem. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why do apples and potatoes turn brown when you slice them?

    Oct 10 2008

    All cells contains thousands of enzymes, and each of these enzymes is necessary for the cell. Check out this HowStuffWorks podcast to learn which enzymes cause apples and potatoes to turn brown upon exposure to oxygen. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is an anti-siphon valve?

    Oct 08 2008

    In houses with a built-in sprinkler system, anti-siphon valves prevent pesticides, pet waste, and other contaminants from polluting the home's water source. Check out this HowStuffWorks podcast to learn more about anti-siphon valves. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How a GFCI outlet works

    Oct 03 2008

    A normal 120 volt outlet in the US has two vertical slots and a role hole centered below the slots -- the outlets with a pair of red and black 'test' and 'reset' buttons are known as GCFI outlets. Check out this HowStuffWorks podcast to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Could anti-lock brakes detect a flat?

    Sep 29 2008

    By using a computer to monitor the rotation of the car's wheels, an anti-lock braking system helps drivers avoid skids. Could this computer also monitor flat tires? Check out this HowStuffWorks podcast to learn more about brake systems. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Gun Silencers Work

    Sep 22 2008

    The sound of gunfire is incredibly loud, and it is amazing that anything is able to silence a firearm. However, the principle behind a gun silencer is surprisingly simple. Check out our HowStuffWorks article to learn more about silencers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Heart Bypass Operations Work

    Sep 19 2008

    Since the heart is a muscle, it relies on the oxygen and nutrients contained in blood. This blood is supplied by arteries on the exterior of the heart -- when these arteries are blocked, a heart attack results. Take a look at our HowStuffWorks article to Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the difference between jelly jam and preserves? And What is Jello?

    Sep 12 2008

    Jam, jelly, and preserves are all made from fruit mixed with sugar and pectin. Jell-O, on the other hand, is completely different. Take a look at our HowStuffWorks article to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How children from the same parents look so different?

    Sep 08 2008

    Every person has a set of chromosomes, or coiled strands of DNA. Check out this HowStuffWorks podcast to learn how chromosomes combine to promote variation from one generation to the next. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Catapults Works

    Sep 05 2008

    There are three different technologies that fall into the catapult category: the ballista, the trebuchet and the catapult. Check out this HowStuffWorks podcast to learn more about the differences between catapult technologies. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What does the computer in a car do?

    Sep 03 2008

    All cars manufactured today contain at least one computer -- but what does it do? Check out this HowStuffWorks podcast to learn more about car computers. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Water Softener Works

    Aug 29 2008

    The idea behind a water softener is simple: the calcium and magnesium ions in hard water are replaced with sodium ions. Learn more about the harmful effects of hard water -- and the benefits of soft water -- in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Carbon Chains Work

    Aug 27 2008

    Learn how the length of hydrocarbon atom chains have different properties, producing substances such as kerosene, methane and other forms of fossil fuel. Check out this HowStuffWorks podcast to learn more about fossil fuels. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Do the humps on camels hold water?

    Aug 25 2008

    The camel's hump is a giant deposit of fat that lets the camel survive up to 2 weeks without food. Learn more about camels in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why does Alka-Seltzer fizz?

    Aug 20 2008

    The fizzing you see when you drop an Alka-Seltzer tablet in water is the same sort of fizzing that you see from baking powder. This reaction is caused by an acid reacting with a base. Check out this HowStuffWorks podcast to learn more. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What causes the banging noise in my home's pipes?

    Aug 18 2008

    The problem of pipes banging on a wall is often called "water hammer." Check out this HowStuffWorks podcast to learn more about this phenomenon. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Catalytic Convertors Work

    Aug 11 2008

    Catalytic convertors convert hydrocarbons, carbon monoxide, and nitrogen oxides into three harmless chemicals, making the exhaust of a vehicle much cleaner. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How 3-Way Lightbulbs Work

    Aug 01 2008

    A 3-way bulb contains two filaments, and these filaments have differing wattages. Depending on the setting, the filaments operate separately or together to create the appropriate amount of light. Learn more about 3-way bulbs in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Breathing in a Submarine Work

    Jul 30 2008

    For air in a submarine to remain usable, three things must happen: The oxygen must be replenished as it is consumed, the carbon dioxide must be removed from the air, and the moisture in human breath must also be removed. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Fever Works

    Jul 28 2008

    In this podcast, learn what causes a fever and what actually happens to the body when a fever occurs. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Fountains in Rome Work

    Jul 25 2008

    Built before the invention of electric pumps, fountains in Rome were powered through an ingenious system of gravity, cisterns, and aqueducts. Learn more about fountains in Rome in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Nautical Miles Work

    Jul 21 2008

    One minute of arc on planet earth is equal to one nautical mile. Listen to this HowStuffWorks podcast and learn more about the measurement of nautical miles. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Digital Answering Machines Work

    Jul 18 2008

    Today, most answering machines are digital, and use the same technology as a CD or MP3 player. Learn more about digital answering machines in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Maple Syrup Works

    Jul 16 2008

    The clear, thin sap of Maple trees must be boiled down to create maple syrup -- it takes about 30 to 40 gallons of sap to create one gallon of syrup. Check out this HowStuffWorks podcast to learn more about Maple syrup. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Glowing Watch Hands Work

    Jul 14 2008

    In many watches, phosphor is mixed with a radioactive element that continously charges the phosphor, powering glowing watch hands. Learn more about glowing watch hands in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Uninterruptible Power Supplies Work

    Jul 14 2008

    An uninterruptible power supply protects computers against surges, spikes, sags, and total power failure. Check out this HowStuffWorks podcast to learn more about uninterruptible power supplies. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How the Corvette ZR1 Works

    Jul 14 2008

    The 2009 Corvette ZR1 combines several technical innovations to produce a turbo-charged, eight-cylinder engine. Learn more about the Corvette ZR1 in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How gas pumps work

    Jul 14 2008

    Next time you're filling up your tank at a gas station, ask yourself this: how does the nozzle know when the tank is full? Learn more about gas pumps in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • Why the Sky is Blue?

    Jul 14 2008

    As sunlight passes through the atmosphere, particles in the air scatter blue light more efficiently than any other color in the light spectrum, creating a blue sky. Learn more about the sky and light in this Brainstuff podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Radiation Works

    Jul 14 2008

    Although most people are frightened by radiation, the truth is we are irradiated every day, both from cosmic rays in the sky, and radioactive elements in the ground. Learn more about radiation in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the Difference Between a Carat and a Karat?

    Jul 14 2008

    Carats are used for diamonds, while karats are used for gold. Learn more about the difference between carats and karats in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Perceiving Earth as a Sphere Works

    Jul 14 2008

    Is there any way that people could know the world is sphere while standing on the earth? Learn more about perceiving earth as a sphere in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Flatulance Works

    Jul 14 2008

    Learn about the causes of gas (flatulence) in this podcast from Marshall Brain. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Leap Years Work

    Jul 14 2008

    A normal calendar years is 365 days long, but the earth actually takes 365.2422 days to completely orbit the sun. Learn more about leap years in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Red Eyes in Photographs Work

    Jul 14 2008

    The flash of a camera is bright enough to cause a reflection off the human retina -- the red we see in these photos comes from the blood vessels in the eye. Learn more about red eyes and cameras in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • What is the Fastest Computer in the World?

    Jul 14 2008

    Although the speed of computers is growing exponentially, the human brain may handle roughly ten quadrillion instructions per second. Learn more about the world's fastest computer in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Do Vitamins Work?

    Jul 14 2008

    A vitamin is a small molecule the body needs but cannot manufacture on its own. Learn more about vitamins in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Nanosolar Works

    Jul 14 2008

    A company named Nanosolar is shaking up the alternative energy industry by offering solar technology at the lowest prices in history -- even cheaper than energy derived from coal. Learn more about Nanosolar in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Ultra Hi-Def Works

    Jul 14 2008

    A standard HD screen has roughly 2 million pixels per frame -- but an ultra HD has four times that resolution. Learn more about ultra hi-definition in this HowStuffWorks podcast. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

  • How Stealth Technology Work

    Jul 14 2008

    Shaping an airplane a certain way -- or using materials that absorb radar waves -- causes a stealth aircraft to have the signature of a small bird, rather than an airplane. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers