Two Persian Astronomical Treatises by Nasīr al‐Dīn al Tūsī

  title={Two Persian Astronomical Treatises by Nasīr al‐Dīn al Tūsī},
  author={Edward S. Kennedy},
al-Ṭūsī, Naṣīr al-Dīn
Binomial coefficients and Nasir al-Din al-Tusi
Abu Jafar Muhammad Ibn Muhammad Ibn al-Hasan Nasir al-Din al-Tusi was born in Tus, Khurasan (now, Iran) in 17 February 1201 and died in Baghdad 25 June 1274. Al-Tusi was one of the greatest
Configuring the Universe: Aporetic, Problem Solving, and Kinematic Modeling as Themes of Arabic Astronomy
  • A. Sabra
  • Physics
    Perspectives on Science
  • 1998
The undoubted truth is that there exist for the planetary motions true and constant configurations from which no impossibilities or contradictions follow; they are not the same as the configurations
The Two Versions of the Tūs? Couple
The aim of virtually every theoretical astronomer in the Arab/Islamic tradition was to provide a physical structure, or hayb13 for the universe in which each of Ptolemy’s motions in the Almagest would be the result of a uniformly rotating solid body called an orb.


The First Non-Ptolemaic Astronomy at the Maraghah School
In 1893 Bernard Carra de Vaux published a translation of a chapter of an astronomical text written by Na?jir al-Din al-TUsT (d. A.D. 1274), in which Tus1 proposed a nonPtolemaic model for the moon.1
Late Medieval Planetary Theory
THIS PAPER IS an attempt to describe and discuss models for representing planetary motion developed in the thirteenth century or shortly thereafter. A series of four articles which have appeared in