why is it easier to feel the wind direction with a wet finger?
In: Physics
When a liquid evaporates from liquid to gas this process consumes energy, as in it removes heat from the liquid, so it gets colder. So if your finger is uniformly wet and you put it up in the air the side getting blown than the wind will evaporate faster than the other side because it comes into contact with more air, which has more capacity to cause evaporation, so the side that gets colder is the side that the wind is coming from.
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