Halbach array
Videos
A Halbach array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side. This is achieved by h
The flux diagram of a Halbach array
The magnetic field around an infinite Halbach array of cube magnets. The field does not cancel perfectly due to the discrete magnets used.
Magnetic viewing film showing a flat refrigerator magnet's magnetization
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.