Superconductors are really cool materials! One property called the Meissner effect makes superconductors expel magnetic fields. To do this, currents are induced in the superconducting material, generating its own magnetic field to cancel the field of the approaching magnet. This group from Paris made a superconducting hoverboard and magnetic track, which they demonstrate in this video. Check it out!
This is another cool video describing a superconducting material on a magnetic track. Check it out!
This TED talk talks a little about the physics of this phenomenon.
Can you imagine how this could be useful? What challenges would engineers need to tackle before using this in practical applications? Comment in the comments section.
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