Farming couple turn to harnessing power from river
By Joe Watson
Technology developed by an ancient Greek is helping a farmer in the heart of Aberdeenshire generate electricity.
The Archimedes’ screw used by John and Jacqueline Riley at Strathdon, however, works in the opposite
direction from that for which it was designed.
Greek polymath Archimedes of Syracuse is said to have developed the screw in the third century BC to lift water
from low-lying areas into irrigation channels so food crops could be grown. Its use has since spiralled, but the
concept still remains the same in that it has a spiral screw within the metal casing to move the water
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