Monday, December 27, 2010

wind power

http://bux.to/?r=tankahban

-Used the wind as an energy source for a long time
-Babylonians and Chinese were using wind power to pump water for irrigating crops 4,000 year ago , and sailing boats were around long before that .
- Wind power was used in the Middle Ages , in Europe , to grind corn , which is where the term " windmill " comes from .

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