How does a magnetic levitation train float above the track?
Quick Answer
Maglev trains use magnetic forces to lift and guide the train so it does not touch the track. Some systems also use linear motors to propel the train forward.
The Full Story
Maglev, short for magnetic levitation, uses magnets to create lift and stability. In electromagnetic suspension systems, attractive forces pull the train upward toward the guideway, while control systems keep the gap steady. In electrodynamic systems, repulsive magnetic forces can also help levitate the train once it is moving. Because the train does not roll on wheels, friction is much lower than in conventional rail. Japan’s SCMaglev test train reached 603 km/h in 2015, a world record for a manned train.
Key Facts
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