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 ...

There is a cube-shaped version as well, called magnetic cubes. The agency and the pediatric society have received 10 reports of children accidentally swallowing magnetic balls and suffering ...

Oregon State University scientists have developed a highly efficient, uniquely shaped magnetic nanoparticle that could enable ...