Lexus Hover board
I had a pretty good idea of how Lexus' hover board works from day one. Now Lexus has dropped a video that explains the science behind their recent hover board stunt, and its exactly what i expected. But it's also still really, really rad.
The Lexus hoverboard uses a superconductor suspended in a magnetic field to stay afloat. That mist coming out of the side is in fact due to liquid nitrogen having been pumped into the thing to make all of this possible. And yes, it needs a specific kind of surface below it. It's a simple concept.