I was in the carribean recently and OMG with that humidity an 85 degree day was the worst heat I can recall. I live somewhere that it reaches 100 in the summers. But it’s dry here. And that makes so much difference.
It really made me wonder about my dog, who cannot sweat. Is he dying on an 85 degree day?
maporita@unilem.org 1 year ago
Another reason a fan works is because it increases evaporation of sweat. Evaporation involves a phase change which requires energy. That energy is extracted from the body surface. Without air flow the envelope of air next to the skin gets saturated meaning it can’t hold any more water vapor, so evaporation stops.