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A screw is a mechanism that converts rotational motion to linear motion, and a torque (rotational force) to a linear force.
https://en.wikipedia.org/wiki/Screw_(simple_machine)
Geometrically, a screw can be viewed as a narrow inclined plane wrapped around a cylinder.
Archimedes Screw is a machine historically used for transferring water from a low-lying body of water into irrigation ditches.
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