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Boaz Almog: The levitating superconductor
Boaz Almog
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All the comments and stories posted to Hacker News that reference this video.> The problem is, there's no friction (as the article states) for the board.Where'd you read that? All I read was that they are working on a friction-free car.
It uses super-conductivity to facilitate levitation. Flux pinning creates an 'on-rails' movement between the two components (the superconductor and the magnetics on the ground).
Defects in the magnets and gaps would create areas of resistance, much like they do in toy-scale versions of this same concept, but you'll still be pinned to the magnetics as long as that superconductor stays cold.
There will be no 'astronaut-in-space' movement, because the board will only be able to achieve quantum levitation over a bed of magnetics, which will be many pieces and not defect-free.
http://quantumlevitation.com/the-physics/
http://www.ted.com/talks/boaz_almog_levitates_a_superconduct...
Can the hyperloop be combined with quantum levitation? To provide very low friction high speed travel? http://www.ted.com/talks/boaz_almog_levitates_a_superconduct...
⬐ TaekI think the problem with that idea is you have to keep the superconductor very cold, which might be too expensive for large objects that need to levitate for 30 minutes.