What is “wet bulb temperature” and why does it matter?
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When you sweat, the water goes into the air and takes some heat with it.
If you cover a thermometer with a wet towel, it acts like how a person does when they sweat.
We call this wet bulb because scientists used to cover the bulbs of thermometers with water.
Humidity is how much water is in the air. If there’s too much water in the air, sweat can’t go into the air and cool you off and can’t make the temperature of a wetbulb thermometer go down.
This means that when it’s too humid and too hot, the thermometer and you can’t cool down.
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