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File:Stadium Light Reflector-Wash Basin-Solar Thermal Water Pasteurizer.jpg: Revision history
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2 May 2013
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02:54
02:54, 2 May 2013
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Parabolic stadium light reflectors concentrate direct sunlight onto a blackened one gallon glass container of water and raises the water temperature to over 160 degrees f within three hours. The hot pasteurized water can be mixed with cooler water to pro
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