Archimedes' screw. Artwork of the screw-based water pump said to have been devised by 3rd-century BC Greek engineer Archimedes of Syracuse. It consists of a screw thread inside a hollow shaft. As the screw is turned with the handle (upper right),water at the lower end is raised to the higher end. The device was used for irrigation of farmlands | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / JOSE ANTONIO PEÑAS |
Bildgröße: | 4998 px × 3532 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |