The video is very unconvincing, unless I misunderstand what they're trying to achieve. Even with all the friction and air resistance in the environment, they di

The video is very unconvincing, unless I misunderstand what they're trying to achieve. Even with all the friction and air resistance in the environment, they didn't manage to rotate even a quarter of a turn. Even when it looked like it was working, the direction would sometimes invert for no apparent reason. You can do better than that just by shuffling around on an office chair.