How has the traditional use of wind and water energy been modified for our convenience?
Nowadays, windmills are used to generate electricity whereas earlier they were used to harness wind energy to do mechanical work such as lifting/drawing water from a well.. Through windmills, the kinetic energy of wind is converted into electricity. The rotatory motion of the blades turns the turbine of the electric generator to generate electricity. waterfalls potential energy is converted to electricity with the help of turbines. Since waterfalls are few in number, water dams have been constructed in large numbers. Nowadays, hydro-dams are used in order to harness potential energy of stored water. In water dams, water falls from a height on the turbine, which produces electricity.
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