Search results
Results from the WOW.Com Content Network
Nasir al-Din al-Tusi was a well published author, writing on subjects of math, engineering, prose, and mysticism. Additionally, al-Tusi made several scientific advancements. In astronomy, al-Tusi created very accurate tables of planetary motion, an updated planetary model, and critiques of Ptolemaic astronomy.
The Tusi couple (also known as Tusi's mechanism [1] [2] [3]) 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 of the smaller circle to oscillate back and forth in linear motion along a diameter of the larger circle.
The spherical law of sines was discovered in the 10th century: it has been attributed variously to Abu-Mahmud Khojandi, Nasir al-Din al-Tusi and Abu Nasr Mansur, with Abu al-Wafa' Buzjani as a contributor. [16] Ibn Muʿādh al-Jayyānī's The book of unknown arcs of a sphere in the 11th century introduced the general law of sines. [23]
Central Tower of the Maragheh Observatory. The Maragheh observatory (Persian: رصدخانه مراغه), also spelled Maragha, Maragah, Marageh, and Maraga, was an astronomical observatory established in the mid 13th century under the patronage of the Ilkhanid Hulagu and the directorship of Nasir al-Din al-Tusi, a Persian scientist and astronomer.
In the 13th century, Nasir al-Din Tusi (Nasireddin) made advances in spherical trigonometry. He also wrote influential work on Euclid's parallel postulate. In the 15th century, Ghiyath al-Kashi computed the value of π to the 16th decimal place.
At the end of thirteen century, Nasir al-Din al-Tusi wrote this book when he was in Quhistan to response to request of Nasir al-Din Abu al-Fath Abd al-Rahim ibn Abi Mansur, a Nizari Ismaili governor, for translating a famous Arabic book, Tahdhib al-Akhlaq, that was written by Miskawayh. The Miskawayh's book was about ethics but Nasir al-Din al ...
Therefore, when al-Tusi complained that his astronomical tables were 250 years old, Hulagu gave permission to build a new observatory in a place of al-Tusi's choice (he chose Maragheh). A number of other prominent astronomers worked with al-Tusi there, including Muhyi al-Din al-Maghribi , Qutb al-Din al-Shirazi , Mu'ayyid al-Din al-'Urdi from ...
Another notable work from Nasir al-Din al-Tusi was an astronomical book that contained detailed notes and observations about the movement of planets. Under Nasir al-Din al-Tusi, scholars from across the Islamic world came to the Maragheh observatory in order to further their studies in math, science, and astronomy.