Archimedes' screw
MACHINE USED FOR TRANSFERRING WATER FROM A LOW-LYING BODY OF WATER INTO IRRIGATION DITCHES
Archimedes screw; Archimedean screw; Archimedes's screw; Archimedes Screw; Archimedes' Screw; Archimedean Screw; Screwpump; Screw of Archimedes; Screw of archimedes; Archimedies' Screw; Cochlias; Archimedian screw
The Archimedes screw, also known as the Archimedean screw, hydrodynamic screw, water screw or Egyptian screw, is one of the earliest hydraulic machines. Using Archimedes screws as water pumps (Archimedes screw pump (ASP) or screw pump) dates back many centuries.