True, it wasn't "rolling" in the sense of the physical action you performed or even what the crank did, but the crank did move in a circular motion, and things

True, it wasn't "rolling" in the sense of the physical action you performed or even what the crank did, but the crank did move in a circular motion, and things that roll also move in a circular motion, so it makes a little bit of sense, even if it's not really rolling. Not sure why that term stuck.