The Levitating Cup consists of two parts - a glass and a metallic base. The glass hovers above the base via a process called "electromagnetic suspension." It means the glass doesn't touch the ...

If you’re like us, when you first started grappling with the refrigerator magnets, you tried to make one hover motionlessly over another. We tried to position one magnet over another by pitting ...

But, as usual, there is a little more going on than meets the eye. The device is built around superconducting magnets cooled by liquid nitrogen, so it only works for about 10 minutes. After that ...