Windmills were first used in the 1180's for the purpose of grinding flour, and pumping water to irrigate land. They were often used in the North American west to pump water over long distances. Nowadays many nations are trying to harness wind power and convert it into electricity. The way in which this process works is the blades on the windmill are rotated, which turns the wind turbine. The wind turbine converts kinetic energy into mechanical power, then a generator converts the mechanical power into electricity. After this process the electricity is stored in batteries and power grids. M...
More..Justin Thompson
Member since: February 2008
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