Electrodynamic suspension
Videos
Electrodynamic suspension is a form of magnetic levitation in which there are conductors which are exposed to time-varying magnetic fields. This induces eddy currents in the conductors that creates a
Jumping rings lift when an AC current energises a coil and electrodynamic forces push the rings upward against gravity
The JR Central SCMaglev train uses null flux superconductor magnet-based electrodynamic levitation.
Magnetic levitation
Videos
Magnetic levitation or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Magnetic force is used to counteract the effects of the gravitational
Electromagnetic levitation device that includes a permanent magnet for primary force (big dark-gray ring), and electromagnets for stabilization (copper coils in the center)
Magnetic levitation can be stabilised using different techniques; here rotation (spin) is used
A superconductor levitating a permanent magnet
An example of magnetic pseudo-levitation with a mechanical guide (wooden rod) providing stability