The Archimedes screw was invented in 200 AD by Archimedes and was used to pump water up to irrigate fields. It has been used to drain lowlands in the Netherlands and in modern times as part of sewage systems to pump sewer effluent. It has only been a recent development that the screw has been applied to power generation.
By Greenbug Energy Inc. based in Delhi, ONTARIO (CANADA).
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