Chris Angelico wrote:
So, let me get this straight. A CPU has to have a fan, but a car
engine doesn't, because the car's moving at a hundred kays an hour. I
have a suspicion the CPU fan moves air a bit slower than that.

If the car were *always* moving at 100km/h, it probably
wouldn't need a fan.

In practice, all cars do have fans (even the ones that
aren't air-cooled), for the occasions when they're not
moving that fast.

(BTW, so-called water-cooled engines are really air-cooled
too, just not by air flowing directly over the engine
block. (Although marine engines may be an exception.))


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