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Solar Thermal
Putting the Sun's Heat to Work
The sun's heat is an important source of energy. In nature the sun warms the earth and the atmosphere and causes the wind to blow. People have tapped the sun's energy to warm their homes, dry clothes, cook food, and boil water. Even the White House began using solar panels to heat water during the 1970s. When solar thermal energy is concentrated, it can be used to generate steam that spins turbines to generate electricity. |