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Solar Death Ray (Seriously)

   Wed, August 6, 2008 - 1:35 PM
One of my campmates has a solar death ray, that is an 8 square foot lens. It can melt sand. It can light fires. It can even (correction s/evaporate/boil/) boil a gallon of our gray water in 8 seconds.

See another one of these melting a coin:

Eat that, bitches.


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Wed, August 6, 2008 - 2:45 PM
1 square meter (about 9sq ft) receives about 1000 w of energy when the sun is right overhead. That will melt a penny, but it sure won't evaporate a gallon of grey water in 8 seconds. Can we fry some ants like when I wuz little?
Thu, August 7, 2008 - 10:54 AM
Payne, you are correct. I should have said boil. It won't vaporize it instantly, just start evaporating. Still, a pretty damn good way to speed up the process.