I'm not saying that your statement is wrong, just incomplete.
Wind chill is about heat flow.
Wind impinging on an object can increase the rate of heat flow.
It cannot cause the temperature of the object to go below the
ambient temperature of the wind...absent other effects like evaporation.
For non-homogenous objects with imperfect conductivity, like the human
body, exposed skin can be damaged more quickly in cold wind, even if the
core temperature is unchanged.
Your car engine can't. It just cools faster, but only if you leave
the hood open and let the wind blow directly on the engine.
I was informed that wearing jewelry further
increased the effect of wind chill. This became
clear one time when I was helping clean up from
a furnace repair, in cold weather. Handling the
cold metal was far worse than I expected, and I
ended up going to town and buy some heavy gloves.
I don't wear any jewelry, or rings.
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