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Contents contributed and discussions participated by willisjos98

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NRDC: American Wind Farms - 2 views

www.nrdc.org/...american-wind-farms.asp wind current
shared by dpurdy on 12 Mar 13 - No Cached
  • willisjos98 on 12 Mar 13
     
    "Today, wind farms generate about 50,000 megawatts of clean, renewable energy -- the equivalent of the energy produced by 12"
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History of wind power - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...History_of_wind_power
shared by rioshan00 on 11 Mar 13 - No Cached
  • The first windmills in Europe appear in sources dating to the twelfth century. These early European windmills were sunk post mills. The earliest certain reference to a windmill dates from 1185, in Weedley, Yorkshire, although a number of earlier but less certainly dated twelfth century European sources referring to windmills have also been adduced.
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Wind Power - What is Wind Power and How Does It Work? - 0 views

environment.about.com/...wind_power.htm wind form
shared by wellsann99 on 11 Mar 13 - Cached
  • willisjos98 on 11 Mar 13
     
    "Wind power is actually a form of solar power, because wind is caused by heat from the sun. Solar radiation heats every part of the Earth's surface, but not evenly or at the same speed. Different surfaces-sand, water, stone and various types of soil-absorb, retain, reflect and release heat at different rates, and the Earth generally gets warmer during daylight hours and cooler at night. As a result, the air above the Earth's surface also warms and cools at different rates. Hot air rises, reducing the atmospheric pressure near the Earth's surface, which draws in cooler air to replace it. That movement of air is what we call wind."
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