Water Screw
Broschiertes Buch

Water Screw

Archimedes, Screw Conveyor, Screw-Propelled Vehicle

Herausgegeben: Modestus, Jamey Franciscus
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The Archimedes' screw, also called the Archimedean screw or screwpump, is a machine historically used for transferring water from a low-lying body of water into irrigation ditches. The screw pump is commonly attributed to Archimedes on the occasion of his visit to Egypt, but this tradition may only reflect that the apparatus was unknown before Hellenistic times and introduced in his life-time by unknown Greek engineers.The Archimedes' Screw consists of a screw inside a hollow pipe. The screw is turned usually by a windmill or by manual labor. As the bottom end of the tube turns, it scoops up a...