What is “wet bulb temperature” and why does it matter?

Question

What is “wet bulb temperature” and why does it matter?

In: 3256

Answer 1

You take a wet cloth and cover the end of the thermometer, then pass the air over it. The water will evaporate and cool the thermometer so the temp will drop. This is the wet bulb temp. Lick your finger and blow on it, you’ll feel the same effect.

It is important because people sweat and cool themselves as the sweat evaporates. If the humidity is too high, water won’t evaporate readily and you won’t be able to cool down. You’ll over heat and die. This is a bad thing.