He revived the Peripatetic philosophy, which had been declining in Iran after Avicenna
\nHe compiled a collection of Shia theological views in the book “Tajrid al-I’tiqad
\nHe built the Maragheh Observatory
\nHe created very precise tables of planetary motion, which were an updated planetary model and critiques of Ptolemaic astronomy
\nAlongside the Maragheh Observatory, he established a library with about forty thousand books<\/p>\n
Triangles were introduced as a branch of mathematics as a science
\nBy nurturing students such as Qotb al-Din Shirazi and gathering Iranian scholars, he became a key factor in the transmission of Iranian civilization and knowledge before the Mongols to future generations
\nThere is evidence that suggests he influenced Copernicus’s heliocentric theory<\/p>\n
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A 60-kilometer volcanic crater in the southern hemisphere of the Moon has been named after Khwaja Nasir al-Din al-Tusi. A minor planet discovered by the Russian astronomer Nikolai Stefanovich Chernykh in 1979 is also named after him. Khaja Nasir al-Din al-Tusi University in Tehran, the Tabriz Observatory, and the Shamakhi Observatory in Azerbaijan have also been named in his honor<\/p>\n
In 2013, the Google search engine, on the occasion of the 812th anniversary of the birth of Khwaja Nasir al-Din al-Tusi, posted an image of him on its website that was accessible in Arab countries. According to the BBC, this photo emphasized the Iranian heritage of this scholar, which provoked reactions in Arab countries<\/p>\n
In Iran, the 5th of Esfand, the anniversary of Khaj Nasir al-Din al-Tusi’s birth, has been designated as Engineering Day<\/p>\n
Triangles<\/strong> Physics<\/strong> In the book “Al-Basair,” written by Euclid, he compares the propagation of sound to water waves and elaborates on it<\/p>\n He has come up with a new method for using the sundial for observation, which is valuable in the field of astronomy<\/p>\n Astronomy<\/strong> Date of death<\/strong><\/p>\n His date of death is the 18th of Dhul-Qi’dah in the year 673 AH; he was buried in the shrine of Kadhimayn, at the feet of two Imams. According to his will, this verse from Surah Al-Kahf was inscribed on his gravestone: “And their dog was stretching its forelegs at the entrance (of the cave).<\/p>\n
\nIn the book “Shape of the Sector,” triangles are introduced for the first time as an independent science, and it is presented in the preface of astronomy, outlining the fundamental laws for solving planar and spherical triangles<\/p>\n
\nIn the book “Tajrid al-Kalam,” he discusses light and presents ideas based on the particle theory that are of extraordinary importance<\/p>\n
\nKhwaja Nasir al-Din al-Tusi compiled the “Zij Ilkhani” based on the observations made at the Maragheh Observatory. The Zij Ilkhani has held special significance for centuries in many regions of that time, including China, and was translated and published in Europe in 1356 AD. The oldest copy of this Zij is kept in the National Library of Paris<\/p>\n![\"Nasir_al-Din_Tusi\"](\"https:\/\/zhiva-parvaz.com\/wp-content\/uploads\/2025\/01\/Nasir_al-Din_Tusi-300x300.jpg\")
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