University of California, San Diego
Physics 11 - Survey of Physics

H. E. Smith   Fall 2003

   Physics 11 - Lecture #1
   25 September 2003

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.

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Gene Smith

Last modified: Tue., 19 Sept. 2003