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| Ar·chi·me·de·an screw [ rkə mdee ənskr ] (plural Ar·chi·me·de·an screws) |
noun |
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| Definition: |
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water-raising device: an ancient method of raising water, using either a large screw inside a sloping tube or a spiral tube curling around a sloping axis, that causes water to flow upward when the screw or tube is turned
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| [After Archimedes] |
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