Ancient Clam Shell Reveals Shorter Day Length

from  60-Second Science

Mar 17, 2020

 

The growth layers in a 70-million-year-old clam shell indicate that a year back then had more than 370 days, with each day being only about 23.5 hours.

Pastime is not the owner of the podcast content presented on this page. Pastime is not affiliated with nor endorses this content. © 2017 Pastime