University of California, San Diego
Physics 11 - Survey of Physics
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Physics 11 - Lecture #1
25 September 2003
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Ptolemy's model requires complicated motions circles
(epicycles) upon off-centered circles, etc., in order to preserve the
Aristotilean ideal of perfect circular motion in a geocentric Solar System.
Lecture #1 Page 4
Copernicus' Model
Ph 11 Lectures
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Gene Smith
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modified: Tue., 19 Sept. 2003