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| navigate by keyword : apparatus archimedean archimedes axle body ceredis clean common crank cylindrical device dirty ditch education engineering flow fresh hand helical historically irrigation knowledge liquid lowlying machine male man mechanic mechanical mechanism metal model nature old outdoor physics pipe pump rotate run science screw screwpump spiral system tool transferring turn used water |
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| The Archimedes screw, Archimedean screw or screwpump, is a machine historically used for transferring water from a low-lying body of water into irrigation ditch. |
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