2026-09-28 03:59 UTC
I know you joking bu, isn’tt this how those fancy asian bullet trains work?
Replies (1)
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@echodot@feddit.uk 2026-09-28 04:53
That’s magnetic levitation, and it’s magnetic repulsion not attraction. The push the train away from the tracks and that balances against the gravity pushing it down onto the tracks, so it levitates. Then you just oscillate the polarity of the electromagnet to move forward. It allows for extremely high speed travels since there is no friction with the tracks, but in terms of efficiency it’s not much better than a normal electric train. It’s just faster, which in commuter trends it is what you want. But it wouldn’t be much good for personal vehicle transit, even if we did magnetize all of the roads.