Source: http://www.thriftyfun.com/tf468410.tip.html

What is a Cube Law?

In reference to wind energy, for any given instant, the power available in the wind is proportional to the cube of the wind velocity; when wind speed doubles, the power availability increases eight times.

U.S. Department of Energy
Source: http://www.thriftyfun.com/tf468410.tip.html
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