Concept

Ali Qushji

Overview

Ala al-Dīn Ali ibn Muhammed (1403 – 18 December 1474), Persian: علاءالدین علی بن محمد سمرقندی known as Ali Qushji (Ottoman Turkish : علی قوشچی, kuşçu – falconer in Turkish; Latin: Ali Kushgii) was a Timurid theologian, jurist, astronomer, mathematician and physicist, who settled in the Ottoman Empire during the reign of Mehmed II some time before 1472. As a disciple of Ulugh Beg, he is best known for the development of astronomical physics independent from natural philosophy, and for providing empirical evidence for the Earth's rotation in his treatise, Concerning the Supposed Dependence of Astronomy upon Philosophy. In addition to his contributions to Ulugh Beg's famous work Zij-i-Sultani and to the founding of Sahn-ı Seman Medrese, one of the first centers for the study of various traditional Islamic sciences in the Ottoman Empire, Ali Kuşçu was also the author of several scientific works and textbooks on astronomy.

Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).

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The which adorned and embellished as it was by Eudoxus, Aratus who had no knowledge of astronomy, but a certain poetical faculty, many years afterwards extolled in his verses. The mechanism of this sphere, however, on which the motions of the sun, moon, and those five stars which are called wandering and irregular, are shown; could not be illustrated on that solid sphere. But what appeared very admirable in this…
Marcus Tullius Cicero, The republic of Cicero
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For this reason, too, it is a legend universally believed, that Pythagoras, for instance, received his Philosophy from India and Egypt; the fame of the wisdom of these people, which wisdom is understood also to contain Philosophy, is an old one. The Oriental ideas and religious worship which prevailed throughout the West up to the time of the Roman Empire, likewise bear the name of Oriental Philosophy. The Christian…
Georg Wilhelm Friedrich Hegel, Hegel's Lectures on the History of Philosophy
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And here, also, we have to notice the important fact that, in the very process of being brought jointly to bear upon astronomical problems, they are themselves raised to a higher phase of development. For it was in dealing with the questions raised by celestial dynamics that the then incipient infinitesimal calculus was unfolded by Newton and his continental successors; and it was from inquiries into the mechanics…
Herbert Spencer, Illustrations of Universal Progress
Close in meaning to Ali Qushji; the term itself is not named.
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Philosophers who discussed Ali Qushji

Jalal al-Din Davani

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