The software that is used to record the movement plays it back. It's like the Cinématographe Lumière was both a camera and a projector, but the software can do both at the same time.
@BobHorowitz That was the photo I was talking about.
A long exposured photo of a road with car's lights, while me and my friend were riding back from a trip we had, with his scooter. This photo was from 1 month ago.
Because of too much move, the shot weren't stabilized well, but it looks good.