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Old 01-04-2013, 07:43 PM   #581 (permalink)
UFO
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Quote:
Originally Posted by AlaricD View Post
Not sure where the sun comes in from all of this (other than we need it in general)-- I thought it was gravity.
Gravity is not a source of energy either. The sun heats the water and drops it as rain on the higher elevations - that's why it's "solar" energy.

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