A look at the medieval Alhambra palace's remarkable water engineering, focusing on a pulser pump design with no moving parts that may have supplied the fortress with water. The pulser pump works by using falling water to drag air bubbles into a cavity, creating alternating pockets of water and air that push water uphill. Also covered is the Acequia Real aqueduct, the hydraulic ram mechanism, and the debunking of the popular myth that the Court of the Lions fountain was a time-controlled clock. Much of the original engineering knowledge has been lost, leaving researchers to reconstruct mechanisms from incomplete historical accounts.
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