Monday, March 26, 2007

Energy resources


One of the most enery resource is wind. Wind is created by the sun heating on Earth surface. The kinetic enery of wind turn the blades of a windmill. Wind turbine changes the kinetic energy of the air into electrical energy by turning a generator. Also another is energy from water. Sun make water to evaporate and fall again as rain that flow through river. They fall water and thatturn turbines in a dam. The turbines are conacted to a generator the change kinetic energy to electrical energy.

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