Since things heat up when they move faster (i.e. particles and the definition of temperature), why does air feel nice and cool in a breeze, or from a fan? Why isn’t the air warmer than normal when it’s moving faster?
In: Physics
They are not moving faster, their chaotic movements just get a little less chaotic and start to go somewhere.
Imagine you have a bunch of kids in your living room, all the doors are closed and they are running like little demons around. Once you open a door, to the kitchen, for example, their speeds will stay the same but now you will see a flux of those little bastards into the kitchen and this is the only way we can feel the breeze.
When air gets hotter, it rises. The cold air nearby will fill the vacuum created and that’s the flux we feel. The speed of the molecules is not being raised, but now they have a direction to go.
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