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by DanBC 3977 days ago
Skateboard parks; amusement parks.
1 comments
bitzerlander 3977 days ago
Maybe a prototype for magnetic roads and hover cars?
link
DanBC 3977 days ago
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.

link