My alternative power source is Hydro power. It comes from water. The oldest and simplest form was the water wheel first used in ancient Greece for grinding grain. The water wheel design was changed by Jean Victor Poncelet in the 18th century. He made the blades curved which raised the efficiency by 70 percent. The water wheel was now called a hydraulic turbine. The turbine is a rotary engine that changes the energy of a moving stream of water to mech
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