The stuff shown in the video is totally possible. So there’s this stuff called the Meissner effect, which is where magnets can float above superconductors. They do this because superconductivity is more than just zero electrical resistance—a flowing ring of current is actually the ground state of a superconductor in a magnetic field, and that ring of current provides the magnetic field to hold the magnet up.
The stuff shown in the video is totally possible. So there’s this stuff called the Meissner effect, which is where magnets can float above superconductors. They do this because superconductivity is more than just zero electrical resistance—a flowing ring of current is actually the ground state of a superconductor in a magnetic field, and that ring of current provides the magnetic field to hold the magnet up.