Yes there are forces acting on the ball and on the wheel. The specific forces to be looked at are gravitic, pointing straight down and magnetic, pointing at the end of the magnet. There is also a centripetal force pointed at the center of the wheel. This force is provided by the wheel itself, which stops the ball from moving more than the radius of the wheel from the center.
If you do a vector analysis of the 2 primary forces you will find that they sum up to provide a force directly opposite the centripetal force and equal in magnitude. Thus the net force on the ball is zero, so there is no movement. This of course is after friction has reduced the oscillation of the ball around its final position to 0.
So once again gentle readers Paul is making unsupported claims concerning the magic act that the person who made the video is performing. The thing about all of the claimed perpetual motion devices is that they are basically the same thing that stage magicians do.
Bill Gill
