Ancient and Medieval Water Raising Machines. Water wheels. Noria
Автор: veproject1
Загружено: 2012-02-26
Просмотров: 174630
Описание:
Working Models of Ancient & Medieval Water Raising Machines.
The two main functions of water wheels were historically water-lifting for irrigation purposes and as a power source. When used for water-lifting power can be supplied by either human or animal force or by the water current itself.
Water wheels come in two basic designs, either a vertical or a horizontal axle. The latter type can be subdivided, depending on where the water hits the wheel, into backshot, overshot, breastshot and undershot wheels.
Models are supplied with motors to simulate natural power sources.
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