Tidal Energy originates from gravitational energy. Imagine you have a damn-
like structure built along a river. During the high tide, the water flows
into the river, causing the turbine to rotate and thus generating
electricity. During the low tide, the water flows from the river to the
sea, again, turning the turbine. (An electricity generating turbine
consists of rotating wires surrounded by strong fixed magnetic field)
Wind Turbine Diagram - 2 views
Wind Energy - 1 views
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Tidal Power: Nature's renewable hydro electric engine: Additional info - 2 views
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