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A comment on First Cable-Free Elevator Zooms Horizontally and Vertically Using Maglev Tech. Parent comment

Re:First Cable-Free Elevator Zooms Horizontally and Vertical... by ComputerGuru on Sunday June 25, 2017 @11:51PM (#14633938)
I'm not sure how the elevator works, but if you've ever tried to toss a magnet down a copper tube, it appears to defy gravity - no electricity involved. Something similar could work to create a "fail-proof" elevator.
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Re:First Cable-Free Elevator Zooms Horizontally and Vertical... by k26dr on Sunday June 25, 2017 @11:56PM (#14633964)
In this case the eletric current creates the magentism though. Turn off power and poof, gravity is back
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Re:First Cable-Free Elevator Zooms Horizontally and Vertical... by rrobukef on Monday June 26, 2017 @05:49AM (#14635424)
Only half of the setup are electro magnets. The other half are permanent. If the elevator falls the permanent magnets will induce the coils.
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