Why does being out in the cold make your nose run?
In: Biology
You know how you can see your breath when it’s cold? That because the water vapor in the air turns into tiny water droplets. This happens because the cold air sucks the energy out of the vapor and is called condensation. It’s basically the opposite of boiling. Well, inside your nose those tiny droplets of water collect together until it’s enough to run out your nose.
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