If I’m outside and I start to sweat very much then the sun on my sweat heats it up and I feel hotter than before so I wipe it off and feel cooler for awhile- doesn’t water, or sweat, act sort of like a “magnifying glass” that heats up the surface of the skin in the same way that if you wash your car in direct sunlight then it burns off/evaporates which leaves water marks on the car?
In: Biology
Sweat works because water can evaporate if there’s a bit of wind, or if the air is not humid (the air can accept more water vapor). So when you “force” water to evaporate by aiming some wind at a wet surface, the process of evaporation still requires heat energy, so the water SUCKS heat out of your body, cooling it.
Now if you sit in the sun, there’s so much heat coming from the sun that a little bit of sweat evaporation cooling may not do much for you.
Latest Answers