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14 agos 1321 anni - Arab astronomer and engineer Ibn al-Shatir

Descrizione:

refines and improves the accuracy of the geocentric Ptolemaic model and develops the first accurate model of lunar motion

Aggiunto al nastro di tempo:

HPS Project

28 set 2017

0

0

1634

Data:

14 agos 1321 anni

Adesso

~ 704 years ago

Immagini:

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