My final semester project for Bachelor Degree in Mechatronics. Two axially magnetized ring magnets are used for the purpose of magnetic levitation.
The rotational movement of the rotor blades shown in the video is produced by wind speed of about 1.0 m/s - 1.5 m/s. The rotor blades continue to rotate for about 3 minutes after the fan is turned off. This, of course, is done under no-load.