[kemfqqdz] Magnetic levitation

There are two major types of magnetic levitation for trains.

Electromagnetic levitation: German Transrapid, Shanghai Maglev.

Electrodynamic suspension: two subtypes.

With superconductors, relying on diamagnetism: JR Maglev

Without superconductors, relying on ferromagnetism: Inductrack, Hyperloop.

It is very surprising that the superconductor subtype was developed (to a working full-scale prototype) before the non-superconductor version.  Superconducting magnets seem much more expensive and difficult.