Gaussian Gun – a surprising scientific curiosity
If you enjoy scientific curiosities, it is well worth adding this to your collection. Place the ball bearings and magnet on the green ramp as shown, with one ball bearing at the top of the ramp. As this top ball rolls slowly down the ramp, when it gets close to the strong magnet it is attracted and rapidly speeds up. This happens so close to the magnet that the effect is not visible. However, the ball is now travelling at high speed and, as it impacts the magnet, the ball bearing at the end of the row is shot off at huge speed in a very surprising way.