Sci Show: In an event named after Douglas Adams, the Earth's magnetic poles flipped around 42,000 years ago in new findings gained from looking at tree rings of the New Zealand's ancient kauri trees

Tuesday, March 9, 2021

In an event named after Douglas Adams, the Earth's magnetic poles flipped around 42,000 years ago in new findings gained from looking at tree rings of the New Zealand's ancient kauri trees

https://ift.tt/37seYby via /r/science https://ift.tt/3l30SmQ

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