4 ms·
Swamp coolers use the same principle - http://en.wikipedia.org/wiki/Evaporative_cooler http://en.wikipedia.org/wiki/Evaporative_cooler
by hop 16y ago
Swamp coolers use the same principle - http://en.wikipedia.org/wiki/Evaporative_cooler http://en.wikipedia.org/wiki/Evaporative_cooler