Northern Friesland

Archimedes screw

The wooden Archimedes screw of De Hantumermolen, the windmill built in 1880 with the purpose of draining the 100 hectares Huntumerleeg. The screw has a diameter of 1.61 metres and is 4.91 metres long. It was inclined at an angle of 20° and each revolution of the screw lifted 1,172 litres of water.

Photo by Ludo Kuipers, Thu Nov 12, 2015
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