3 ms·

So we only need to push a lot of electrons into some matter and get maglev trains without superconductors?

• colechristensen 5y ago
  Not really. “only”, no. Trying to levitate trains with static charge would introduce all kinds of hard problems, some easy to imagine, some probably would take a lot of engineering to discover. The electric field would be hard to contain just under the train, the charge would really really try hard to find somewhere else to be, there would be some crazy ionization of the air going on… flying a kite in a thunderstorm would probably be quite safe by comparison to being close to such an apparatus.