8 Predictions ‘Back to the Future: Part II’ Got Right


7. Hover Boards

Back to the Future depiction of a hover board has recently been turned into reality by Lexus.

Lexus calls their hover board SLIDE, and they say it hovers by use of “an insulated core, containing HTSLs (high temperature superconducting blocks). These are housed in cryostats – reservoirs of liquid nitrogen that cool the superconductors to -197°C. The board is then placed above a track containing permanent magnets. When the board is cooled to its operating temperature the track’s magnetic flux lines are ‘pinned’ into place, maintaining the hover height of the board.”

 

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