A black and white figure from page 7 of the book, showing a partial map of Middle Earth with distances between various notable sites.

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1. Robert McNees (mcnees@mastodon.social)'s status on Wednesday, 03-May-2023 15:16:31 UTC Robert McNees

   in reply to

   And finally, this fun little bit from his book “Gravitation and Cosmology.”

   A great book, but a common complaint is that it is maybe not the best place to learn GR.

   On the other hand, does your favorite GR textbook tackle the really big questions like “Is Middle Earth flat?”