The facts behind Archimedes’ screw.

An Archimedes' screw is a hydraulic machine composing of an outer cylinder and an inner cylinder with helical blades.

An Archimedes' screw is a hydraulic machine composing of an outer cylinder and an inner cylinder with helical blades. It can be operated both as a pump and a power generator, though it has been used for other purposes, such as drainage and sewage management.