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Studies of Suction Pumps, Archimedes Tubes, Etc. c1480 (1945). Artist: Leonardo da VinciStudies of Suction Pumps, Archimedes Tubes, Etc. c1480 (1945). From The Drawings of Leonardo da Vinci. [Reynal & Hitchcock, New York, 1945]
Archimedes screw for raising water from one level to another, 1815. This device, invented by Archimedes (c287-212 BC), Ancient Greek mathematician, is still used for irrigation today
Archimedean Screws for raising water from one level to another, 1805Archimedean Screws for raising water from one level to another. The thread could be either external (as in Fig. 3), or the more conventional internal spiral in Fig. 2
Twin Archimedean screws used to raise water, engraving, 1719. Artist: Gaspard Grollier de ServiereTwin Archimedean screws powered by an undershot water wheel, used to raise water. From Gaspard Grollier de Serviere Receuil d Ouvrages Cureieux. Lyons, 1719. Engraving
