Why ptolemy failed in explaining retrograde motion？
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Retrograde motion
2013-03-11 5:30 am
回答 (1)
2013-03-11 11:45 pm
✔ 最佳答案
It is simply because the Ptolemy model is based on taking the earth as the centre of the universe, and all planets are moving around the earth. This is clearly not true in reality. Hence, some retrograde motions of planets could not be faithfully modelled.
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130310000051KK00395