60-second Science
Ancient Clam Shell Reveals Shorter Day Length
- Author: Vários
- Narrator: Vários
- Publisher: Podcast
- Duration: 0:03:43
- More information
Informações:
Synopsis
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.
