5 comments

[ 3.2 ms ] story [ 31.6 ms ] thread
It needs a magnetic surface to work. How is this practical?
Skateboard parks; amusement parks.
Maybe a prototype for magnetic roads and hover cars?
You have to refill it every ten minutes with liquid helium. That skatepark has hundreds of thousands of dollars of magnets in it.

A fun, expensive, bizarrely impractical, toy.

(comment deleted)