Those must be some serious blower fans...lol. You KNOW there’s a weight limitation. I bet 120 lbs...
It’s magnetic.
Bet the battery life is 2 minutes though. I bet it takes an enormous amount of power to run..,
Magnets, not fans.
And you need the floor surface to be a non-ferromagnetic conductor.
https://www.kickstarter.com/projects/142464853/hendo-hoverboards-worlds-first-real-hoverboard
Low(er) cost maglev is not new.
Inductrac
http://136.142.82.187/eng12/Chair/pdf/4227.pdf
https://str.llnl.gov/str/October04/Post.html
Now keeping folks form stealing the copper... sigh