Renewable Energy

How long has wind power been in use?
Answered by Discovery Channel
  • Discovery Channel

    Discovery Channel

  1. The initial use of wind power was by Egyptians in 3000 B.C. to move their sailboats. Windmills were first used to grind grain anywhere from 2000 to 4000 years ago in ancient Persia or Babylon; crusaders brought the windmill idea back to Europe with them in the 11th century A.D. In the 1930s, windmills in rural areas of the U.S. pumped water and generated electricity.

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Still Curious?
  • Could fusion power become a reality?

    Answered by Dr. Michio Kaku

  • Why is geothermal energy better than other energy sources?

    Answered by Discovery Channel

  • How does the hydrologic cycle make rain from seawater?

    Answered by Science Channel


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