Al-Jazari Essay

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NAME : Badi'al-Zaman Abū al-'Izz ibn Ismā'īl ibn al-Razāz al-Jazarī TIME : (1136–1206) the Islamic Golden Age (Middle Ages) EXPERTISE : polymath, scholar, inventor, mechanical engineer, craftsman, artist and mathematician FROM : Jazirat ibn Umar , known as Cizre, Turkey He is known as al-Jazari,. He was named after the area in which he was born which is the city of Jazirat ibn Umar. Like his father before him, he served as chief engineer at the Artuklu Palace, the residence of the Mardin branch of the Artuqid dynasty which ruled across eastern Anatolia as vassals of the Zangid rulers of Mosul and later Ayyubid general Saladin. He was born in the city of Tor which now located in the district of Cizre in south-Eastern Turkey. Al-Jazari was part of a tradition of craftsmen and was thus more of a practical engineer than an inventor. He appears to have been more interested in the craftsmanship necessary to construct the devices than in the technology which lay behind them and his machines were usually assembled by trial and error rather than by theoretical calculation. His Book of Knowledge of Ingenious Mechanical Devices appears to have been quite popular as it appears in a large number of manuscript copies where he described 100 mechanical devices, some 80 of which are trick vessels of various kinds along with instructions on how to construct them. He also explains repeatedly and only describes devices he has built himself. Al-Jazari goes on to describe the improvements he made to the work of his predecessors, and describes a number of devices, techniques and components that are original innovations which do not appear in the works by his precessors. MECHANISMS AND METHODS Camshaft The camshaft, a shaft to which cams are attached, was first introduced in 1206 by al-Jazari, who employed them in

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