In this article, Professor Sevim Tekeli, an outstanding scholar in the history of Ottoman science, describes the instruments built by Taqî al-Dîn Ibn Ma'ruf and his team at the Istanbul observatory (was in activity between 1577 and 1580), and points out in particular the close resemblances between them and those used in Western Europe by Tycho Brahe, at the same time, in his observatory at Uraniborg Castle.
The Instruments of Istanbul Observatory
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Figure 1. The Tabula Rogeriana, drawn by al-Idrisi for Roger II of Sicily in 1154, one of the most advanced ancient world maps. Modern consolidation, created from the 70 double-page spreads of the original atlas. (Source)
Figure 1: Muslim expansion by the end of Umayyad rule in 750. (Source).
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