Magnetic Levitation Hacks

This great project uses the a soleniod's magnetic coil, a Hall sensor, and Arduino to perfectly levitate a magnet. The Hall sensor detects the field of the permanent magnet and uses that information to modulate the magnetic field of the...

Using electromagnetics, researchers at Quebec's University of Sherbrooke developed a scale model train that levitates as it travels around the track. Using tiny magnets being turned on and off at certain intervals allows the train friction-less...