60-second Science
Earth's Magnetic Field Initiated a Pole Flip Many Millennia before the Switch
- Author: Vários
- Narrator: Vários
- Publisher: Podcast
- Duration: 0:02:47
- More information
Informações:
Synopsis
Lava flow records and sedimentary and Antarctic ice core data show evidence of planetary magnetic field activity 20,000 years before the beginning of the last pole reversal.
