3 ms·
A fan works by speeding up the rate of evaporation from your skin, which cools you off. At these wet bulb temperatures the ratio of heat/humidity is so high tha
by el_nahual 5y ago
A fan works by speeding up the rate of evaporation from your skin, which cools you off. At these wet bulb temperatures the ratio of heat/humidity is so high that blowing hot air over your skin just heats you up faster. Kind of like turning on the convection feature in an oven.