3. THE GALILEAN REVOLUTION: EARTH'S PLACE IN THE SOLAR ...
3. THE GALILEAN REVOLUTION: EARTH'S PLACE IN THE SOLAR ...
3. THE GALILEAN REVOLUTION: EARTH'S PLACE IN THE SOLAR ...
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In Aristotle’s (and later Ptolemy’s) geocentric model of the universe, Venus rides on a<br />
circle called an epicycle and the center of Venus’s epicycle rides on a circle called a<br />
deferent around Earth:<br />
5