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How to Get Energy From Wind, Rivers, Tides and Waves -- We've been doing it for two millenia

 Stefan Anitei
  25th-May-2008
Views: 2346
Domain: Energy
Category: Wind/Water/Geo
Contents:
7 January 2008

By: Stefan Anitei, Science Editor

How to Get Energy From Wind, Rivers, Tides and Waves
We've been doing it for two millenia
Windmills have been used even since the 6th century in Persia (Iran). Unlike the later type used in Europe, this one had a vertical ax with sails which worked on horizontal supports. Mill stones from the inferior end ground the cereals for getting flour. The ... See more

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