Oh, dude, that engine piston is like a little jackhammer on steroids, going up and down about 20 times a second in a typical car engine. So, like, if you blink, you might miss it... but maybe don't blink while driving, just in case.
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6 and 2/3 times
It is not. In fact, a second is 1000 times longer than a millisecond.
3
60 times as many.
The second hand on the clock circles 420 times in 7 hours.