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wjbc t1_itppb51 wrote on October 25, 2022 at 12:19 PM

Reply to comment by dumdumdaadum in eli5 this excerpt from Theory of everything by Stephen Hawking by dumdumdaadum

Sorry, not off hand. I know of this video starring Carl Sagan using the shadow method to prove curvature, but I would have to search for one using the Pole Star.