The Cue Ball's Secret Magnet

One thing that's come up on this site frequently: I love magnets. So imagine my delight upon finding that my favorite physical force (way better than gravity, I mean come on) is responsible for helping the cue ball come back out of pay-per-play pool tables while the other balls are swallowed until the next game. Check out the animation on Sploid: a magnet in the table pulls the iron layer only present in the cue ball, yanking the ball onto the "exit" track instead of the "stick around for a while" track. I'd always assumed it was a subtle size difference or something - but this is much better!
[Sploid]