The most grandiose academy of sciences was located in Maragha

Ten devices and equipments were used in Maragha observatory for scientific experiments and observations. Five of those devices and equipments were known before the middle of XIII century, but other five were invented in Maragha observatory under the leadership of N. Tusi. Equipments and devices invented in Maragha observatory were used in Peking observatory of Chine, Ulugbek's observatory of Samarqand, Tycho Brahe's observatory of Denmark and Jaipur observatory of India established during next years and great works were carried out in order to improve those equipments. Let's give some information about mentioned observatories. The table of geographic coordinates of 256 cities was made in Maragha observatory and it was included in "Zij-i Ilkhani". Such table existed in "Zij-i Ulugbek" too. According to results of investigations, that table was copied from "Zij-i Ilkhani" to "Zij-i Ulugbek". Only coordinates of Samarqand were redetermined. There were sine and tangent charts in "Zij-i Ulugbek" too. But those charts were more exact that charts prepared in Maragha observatory.

Autorentext
Daniz, RamizThe writer, researcher and publicist Ramiz Daniz 358 scientific research, popular science and literary historical works have been published by different publishing houses of Europe. He was winner of the international award instituted by the International Writers Union on 3 nominations in 2020 and Grand-Prix winner of the international award in 2021.