It’s the temperature a thermometer will get to through evaporative cooling. You measure it by putting a wet cloth on the bulb of a thermometer and letting the water evaporate.
Essentially, your body cools you down by sweating, but if you reach a combination of sweat and heat above a certain degree, your body is unable to cool you down by sweating, as the air already has enough moisture and its hotter than your sweat.
Then you lose the ability to regulate your heat and you rapidly head towards a heat stroke.
What is wet bulb? I’m from the dry Canadian prairies
It’s the temperature a thermometer will get to through evaporative cooling. You measure it by putting a wet cloth on the bulb of a thermometer and letting the water evaporate.
Removed by mod
Ok I found this I think I get it https://en.m.wikipedia.org/wiki/Wet-bulb_temperature
Essentially, your body cools you down by sweating, but if you reach a combination of sweat and heat above a certain degree, your body is unable to cool you down by sweating, as the air already has enough moisture and its hotter than your sweat.
Then you lose the ability to regulate your heat and you rapidly head towards a heat stroke.