A Medieval Arabic Manuscript Features the Designs for a “Perpetual Flute” and Other Ingenious Mechanical Devices

In the late twelfth and early thirteenth century there lived a mechanically inclined polymath named Badi’ al-Zaman Abu-‘l-‘Izz Ibn Isma’il Ibn al-Razzaz al-Jazari, whom we might prefer simply to call Al-Jazari. A resident of Diyar-Bakir, in modern-day Turkey, he was employed as a court engineer, and indeed, proved to be the finest engineer for which a Mesopotamian ruler of that era could hope. He worked out a variety of functional camshafts, crankshafts, pumps, fountains, and clocks, not to mention his more ambitious designs, including a host of humanoid automata meant to handle tasks like serving beverages and even playing music.

Lying between the practical and the fanciful are such Al-Jazarian inventions as the “perpetual flute,” a diagram of which you can see at the site of the Metropolitan Museum of Art. Involving “two adjacent tanks, each with a plug attached to a chain,” the setup would work when “the pipe on an axle with a bowl fills with water from a channel at the upper right and tips so that water flows into one tank. The air in the tank is thus forced through a pipe attached to a jar that plays a flute until the tank is filled. Then the pipe tilts to fill the other tank with water, causing the other flute to play.” Like a pre-modern Rube Goldberg, Al-Jazari created mechanical concepts that are better seen than explained, and you’ll find many more of them illustrated at Flashbak.

These works of schematic art come not from Al-Jazari’s own hand, but from an Arabic manuscript created some three to six centuries after his death. It appears to pay a kind of tribute to his popular Book of Knowledge of Ingenious Mechanical Devices, which itself drew upon a ninth-century Book of Ingenious Devices written by three Persian brothers known as the Banu Musa. All of these artistic and technical works, and their continued availability in different forms through the generations, reflect the serious work of intellectual custodianship and development across the civilizations of the Middle East after the fall of the Roman Empire — a project that greatly benefited from the occasional sui generis imagination like Al-Jazari’s.

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via Flashbak

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Based in Seoul, Colin Marshall writes and broadcasts on cities, language, and culture. His projects include the Substack newsletter Books on Cities, the book The Stateless City: a Walk through 21st-Century Los Angeles and the video series The City in Cinema. Follow him on Twitter at @colinmarshall or on Facebook.

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