Archimedes' screw

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Ar·chi·me·des' screw


Archimedes' screw

(ˌɑːkɪˈmiːdɪən; -mɪˈdiːən) or

Archimedean screw

(Mechanical Engineering) an ancient type of water-lifting device making use of a spiral passage in an inclined cylinder. The water is raised when the spiral is rotated

Ar′chime′des' screw′

a device consisting essentially of a spiral passage within an inclined cylinder for raising water to a height when rotated.
References in periodicals archive ?
For those not familiar with the Archimedes' screw technique, it is a method of pumping water from a lower level to a higher level, usually for irrigation purposes, that has begun to be used to generate hydroelectric power during the past 10 years.
Fourth are innovations extending life, including the moldboard plow, the green revolution, Archimedes' screw, penicillin, vaccination, and refrigeration.
Part of the restoration was the installation of an original waterwheel and an Archimedes' screw.
If good design stands the test of time, then the Archimedes' screw has to be up there with the very best ever created.
The invention of the Archimedes' screw, a mechanical water pump, has been attributed to Archimedes in the 3rd century BC.
The boys also investigated Newton's apple, how a pop-up toaster works, Archimedes' screw and how an element heats a kettle.
2-acre scheme includes an Archimedes' Screw mill harnessing the river's energy.
It will use a modern version of the Archimedes' Screw to harness water power using a water wheel installed on the weir.