Al-Birjandi
#62,090
Most Influential Person Across History
Persian polymath
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Physics
#2230
Historical Rank
Astrophysics
#367
Historical Rank
Astronomy
#534
Historical Rank

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Physics
Why Is Al-Birjandi Influential?
(Suggest an Edit or Addition)According to Wikipedia, Abdal Ali ibn Muhammad ibn Husayn Birjandi was a prominent 16th-century Persian astronomer, mathematician and physicist who lived in Birjand. Astronomy Al-Birjandi was a pupil for Mansur ibn Muin al-Din al-Kashi, a member at the Samarkand Observatory, otherwise known as The Ulugh Beg Observatory. In discussing the structure of the cosmos, al-Birjandi continued Ali al-Qushji's debate on the Earth's rotation. In his analysis of what might occur if the Earth were moving, he develops a hypothesis similar to Galileo Galilei's notion of "circular inertia", which he described in the following observational test :