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Why are maglev trains still rare? (lemmy.ml)

submitted 1 year ago by frightful_hobgoblin@lemmy.ml to c/asklemmy@lemmy.ml

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They were invented decades ago.

They have fewer moving parts than wheelbois.

They require less maintenance.

There's obviously some bottleneck in expanding maglev technology, but what is it?

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[-] Ziggurat@sh.itjust.works 9 points 1 year ago

We don't have yet room temperature Supra conductors, it's also why there was so much buzz about LK 99 this summer

[-] Natanael@slrpnk.net 4 points 1 year ago

Technically.... We actually do, but not simultaneously room temperature AND room pressure. There's one known material known to be superconducting at absolutely insane levels of pressure. That's not sustainable for any reasonable usecase of superconductors.

https://www.sciencenews.org/article/superconductor-room-temperature-pressure-physics-electricity

[-] Alterecho@midwest.social 2 points 1 year ago

What happened with that by the way? I'm assuming since I haven't seen huge headlines since, it's not been replicated or it's been proven to be a hoax

[-] Natanael@slrpnk.net 7 points 1 year ago

Not replicated, they found some anomalies in the samples skewing the results

https://futurism.com/room-temp-superconductor-fails-work-replicated

https://www.newscientist.com/article/2386866-lk-99-mounting-evidence-suggests-material-is-not-a-superconductor/

[-] Alterecho@midwest.social 1 points 1 year ago

Thanks for the summary and the links!

[-] 520@kbin.social 6 points 1 year ago

It was basically proven not to be a super conductor

this post was submitted on 08 Sep 2023

233 points (94.3% liked)

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