Eratosthenes is a word I can only hear in Carl Sagan's voice.
this post was submitted on 15 Feb 2025
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They also can't prove for sure that the earth is flat
Eratosthenes' experiment could just as easily prove a smaller, closer sun
The best proof is that you can look at the Sun and the moon with your eyes (maybe use a filter for the sun) and see them not change size throughout their path along the sky, which proves that they aren't getting appreciably closer or farther
What do Eratosthenes' proclivities have to do with astronomy