14 Aug 184 Jahr - Roman-Egyptian mathematician and astronomer Ptolemy
Beschreibung:
describes a geocentric model, largely based on Aristotelian ideas, in which the planets and the rest of the universe orbit about a stationary Earth in circular epicycles, which becomes the scientific orthodoxy for nearly two millennia (essentially until Copernicus in the 16th Century). He also details the complex motions of the stars and planetary paths using equants, allowing astronomers to predict the positions of the planets.
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