Nasir al-Din al-Tusi
Khawaja Muhammad ibn Muhammad ibn Hasan Tūsī (Persian: محمد بن محمد بن الحسن طوسی‎) (born 17 February 1201 in Ṭūs, Khorasan – died on 25 June 1274 in al-Kāżimiyyah district of metropolitan Baghd...
Nasir al-Din al-Tusi - Wikipedia
Zij-i Ilkhani
Zīj-i Īlkhānī (Persian: زیجِ ایلخانی‎) or Ilkhanic Tables (literal translation: "The Ilkhan Stars", after ilkhan Hulagu, who was the patron of the author at that time) is a Zij book with astrono...
Tusi-couple
The Tusi couple is a mathematical device in which a small circle rotates inside a larger circle twice the diameter of the smaller circle. Rotations of the circles cause a point on the circumference o...
Tusi-couple - Wikipedia