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Which idea did ptolemyã¢â‚¬â„¢s model use to explain why the planets appeared to move backward as they moved in their orbits?

Which idea did ptolemyã¢â‚¬â„¢s model use to explain why the planets appeared to move backward as they moved in their orbits?
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Which idea did ptolemyã¢â‚¬â„¢s model use to explain why the planets appeared to move backward as they moved in their orbits?

User OMGtechy
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Answer and Explanation:

Epicycles

Ptolemy’s model used the idea of epicycles, or small circles that the planets make around a point that orbits the Earth, to explain why the planets appeared to move backward as they moved in their orbits.

User Nagendra Rao
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