The following article by Abdel Aziz al-Jaraki, a scholar from Damascus, describes the context of the investigation carried on since several decades on a famous clock built by Fakhr al-Din Ridhwan al-Sa'ati at the beginning of the 6th centuty of Hijra (1202 CE) in his work `Amal al-Sa'at wa 'l-`Amal biha (The Operation of clocks and working with them). The author surveys also his ongoing endeavours to reconstruct this instrument and make it live again.
When Ridhwan al-Sa’ati Anteceded Big Ben by More than Six Centuries
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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)
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