1 янв 140 г. - Advanced in the theory of epicycles
Описание:
He redefined the deferent-and epicyle-consept and introduced the equant as a mechanism for accounting for velocity varyations in the motions of planets.Добавлено на ленту времени:
Дата:
1 янв 140 г.
Сейчас
~ 1887 г назад