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News Link • Techno Gadgets

The Physics of the Hendo Hoverboard

•, By Rhett Allain

If you read the description on the kickstarter page, it says:

"The magic behind the hoverboard lies in its four disc-shaped hover engines. These create a special magnetic field which literally pushes against itself, generating the lift which levitates our board off the ground."

That "pushes against itself" makes me worried. You can't make yourself fly by pulling up on your belt, can you?  No, you can't. But there is a way that this could work.

Changing Magnetic Fields

Check out this simple experiment. Here I have a coil of wire connected to a galvanometer (which measures small electric currents). I also have a magnet. If I just hold this magnet inside the coil, nothing happens. Moving the magnet does something interesting.

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