Room-temperature levitation with permanent magnets. A diamagnetic material repels external magnetic fields. Unlike other materials, superconductors have very h

Room-temperature levitation with permanent magnets. A diamagnetic material repels external magnetic fields. Unlike other materials, superconductors have very high diamagnetic constants. [1] This is why one can float a magnet over a superconducting plate (or float a superconductor over a magnet). If we had room temp superconductors, we could tile a floor with them, mount magnets on carts and float the carts across the floor. Or highway. Or whatever. Lots of uses for levitation that consumes no power. [1] https://en.wikipedia.org/wiki/Diamagnetism https://en.wikipedia.org/wiki/Diamagnetism