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OpenStudy (anonymous):

In your own words, explain a crucial piece of evidence that Ptolemy used to construct his explanation of the solar system

OpenStudy (kainui):

I mean, I guess because it doesn't feel like the earth is moving and it looks like the sun is travelling around us every day. Seriously. Ptolemy's version of reality looks like this: http://www.pbs.org/wnet/hawking/universes/assets/images/u.ptolemy.jpg What do you think of that?

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