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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

43 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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[–] FiskFisk33@lemmy.one 14 points 1 year ago

all the other complex and important factors aside, air restistance is a formula of speed squared. Meaning for example if you bump speed up by 40% you double air resistance, and therefore double the energy cost of transport.