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Unformatted text preview: Studied Greek, mathematics, canon law, medicine, and astronomy Made astronomical observations all his life His observations made it clear that Ptolemy theory did not work very well His solution was to put the Sun at the center. The math was much simpler and the results much better The Sun was at the center of the solar system The stars were very distant Earth orbits like any other planet Inferior planet orbits are smaller Retrograde motion occurs when we lap Mars & the other superior planets The annual cycle of the Sun is caused by the Earths orbit He started circulating his ideas in 1514 but did not publish until 1543 Which was also when he died The publication was supervised by a friend who inserted a preface . ....
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- Spring '08