Ptolemaicsystem

Ptolemaicsystem
Ptolemaic system n.
The astronomical system of Ptolemy, in which the earth is at the center of the universe with the sun, moon, planets, and stars revolving about it in circular orbits.

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Universalium. 2010.

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  • Primum Mobile — In medieval and Renaissance astronomy, the Primum Mobile, or first moved, was the outermost moving sphere in the geocentric model of the universe. The primum mobile was thought to be responsible for the apparent daily movement of the heavens… …   Wikipedia

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