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Inventions II

 

1.             Windmills were first described by Persian geographer Estakhri in the ninth century. They were used to grind corn and draw up water and looked different from European ones. The technology is thought to have arrived in Europe through Islamic Spain.

2.             The first hydro-powered water supply system was developed by al-Jaziri in Damascus – driven by gears and hydro-power – to supply water to the city’s mosques and hospitals. Fès had a similar system which worked until relatively recently. Hydro-power was used to power paper mills and all sorts of other devices.

3.             Water wheels called Norias were developed for feeding water into aqueducts. The newly-invented crankshaft was added, and the technology was constantly refined.

4.             As well as crankshafts, Arab engineers devised flywheels, chain pumps, gearing systems, suction pumps, and automata.

5.             The greatest engineer of the era was without doubt al-Jazari, whose breakthroughs in the twelfth century can still be found around us today. His masterwork was the Book of Knowledge of Ingenious Mechanical Devices. He developed the first automatic gates, run on hydro-power, water clocks, and machines which looked like people and would serve cold drinks. He invented the flush mechanism found in most of our toilets, and even a musical robot band.



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