4 c 1 for saffron and cobalt homburg <| sep |> I want to say that I wouldn ' t fall for this shit . but . <| sep |> You ' re just someone getting off on a bunch of morons paying big dollars for poor value garbageftfy <| sep |> In films , when the wheels appear to turn slowly backwards when travelling at speed , it is because they are turning faster than the frame rate of the camera . Let ' s assume you have a video camera , which takes a pictures 30 times every second . Say your wheel has rotational symmetry order 5 every 5 th of a turn , the wheel looks the same . If your wheel turns 15 turn 30 times a second every frame , it will look like the wheel is not moving . If it turns just more than 15 every frame , it will look like the wheel is slowly turning forwards . And if it turns just less than 15 per frame , it will look like it ' s turning slowly backwards . This also works for 25 , 35 , 45 , a whole turn , or more .