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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 jan 140 ano - Advanced in the theory of epicycles

Descrição:

He redefined the deferent-and epicyle-consept and introduced the equant as a mechanism for accounting for velocity varyations in the motions of planets.

Adicionado na linha do tempo:

Data:

1 jan 140 ano
Agora
~ 1887 years ago