In the five-years series, they tested you on the Maglev Train. So, here is the info about it!
Maglev Train
Maglev (derived from magnetic levitation) is a method of propulsion that
uses magnetic levitation to propel vehicles with magnets rather than with
wheels, axles and bearings.Their non-reliance on friction means that
acceleration and deceleration can surpass that of wheeled transports, and they
are unaffected by weather.If you've ever played with magnets, you know that
opposite poles attract and like poles repel each other. This is the basic
principle behind electromagnetic propulsion. Electromagnets are similar to
other magnets in that they attract metal objects, but the magnetic pull is
temporary.
(adapted from wiki)
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