Watch the intense clash between a magnetic cannon and a carefully built sticks and balls cube. The power of magnetism meets structural design in an exciting display of force and precision.

called magnetic cubes. The agency and the pediatric society have received 10 reports of children accidentally swallowing magnetic balls and suffering injuries to their organs since fiscal 2017.

Here on Hackaday, [Caleb] built a Portal gun which levitated a Companion Cube. Rather than go the magnetic route, [Jacob] levitated a ping-pong ball on a cushion of air. Now, it would be ...