Old 06-18-12, 12:56 PM
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black_box 
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Originally Posted by David Henderson
3. keep your clothing wet (in particular your hair on your head (if bald, a dew rag can hold water), jersey and front panels of shorts. Water conducts (transfers) heat 25 times more than air; evaporation removes the heat that has been captured in the water. This is a really big deal for cooling. As an illustration: Tests done with canteens covered with water soaked fabric covering versus canteens with dry fabric covers produced a 42 Fahrenheit degree difference of interior water temperature (23.4 degrees Celsius difference). evaporative cooling effects on water containers.
That's more than I would have thought, good to know.
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