Even in practice in one location, it varies enough to make it a problem if you need a steady supply. Sometimes is blows a little or barely at all, sometimes a lot, and occasionally so much you have to lock on the breaks and stop the thing to avoid damage.
That’s literally impossible by geometry if you mean everywhere.
Even in practice in one location, it varies enough to make it a problem if you need a steady supply. Sometimes is blows a little or barely at all, sometimes a lot, and occasionally so much you have to lock on the breaks and stop the thing to avoid damage.
I always upvote the hairy ball theorem.