170 More on MIT professor who was killed at home (twitter.com) 𝕏 MARKS THE SPOT posted 188 days ago by Raritan 188 days ago by Raritan +170 / -0 35 comments share 35 comments share save hide report block hide replies
It's in the rock record. I teach that in my geology course.
Yes! I remember my science teacher casually mentioning that the rock at divergent plate boundaries showed a strange alternating magnetism. I was like, wait wut? This doesn't concern you??
Geologic time gives a long perspective.