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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

147 comments fedilink hide all child comments

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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[–] xkforce@lemmy.world 7 points 1 year ago* (last edited 1 year ago)

If you subsidize anything enough it can be cheap for people to buy. That doesnt mean that its actually cheap to build and maintain. And the reason why temperatures are kept far below the critical temperature is due to the critical magnetic field and critical current decreasing as temperature increases even below the critical temperature