You must mean a Maglev train. A Maglev train operates on maglev (magnetic levitation). It uses electromagnets (and possibly superconductors) that repel each other to lift the train above the ground to reduce as much friction as possible.
Magnetism elevates the maglev train because like forces repel. Maglev trains are not suspended, but are elevated.
The maglev train was first invented in 1902 . It was invented by a guy named Alfred Zehan.
With the train suspended on a magnetic cushion, there's very little friction (=easy to move the train along) and you can achieve a very smooth and fast ride.
Germany
No two solids ever touch in a maglev.
Friction. Oonce the train is clear of the track, there is no friction to slow it down.
Air resistance.
You must mean a Maglev train. A Maglev train operates on maglev (magnetic levitation). It uses electromagnets (and possibly superconductors) that repel each other to lift the train above the ground to reduce as much friction as possible.
Because there's no friction between the train and the track. In an 'ordinary' train, friction between the wheels and the rails takes a lot of energy to overcome before the train starts moving. In a Maglev train, the train itself actually 'floats' above the track on a 'cushion' of magnetic foirce. With no friction to slow it down, the train is capable of much higher speeds.
All i know is 2 Friction and gravity :) xx
It floats, thus no physical contact ... except with air.
maglev is short for Magnetic Levitation.
No contact with the ground (thus less friction).
Maglev is a contraction of Magnetic Levitation. Magnets of the same polarity are used to levitate the train so that there is no friction between train and rail. Electromagnets of opposing polarity are switched on in sequence ahead of the train to pull it forward.
If you have two magnets they each have a north and south pole. The opposite poles will attract and the same poles will repel. Maglev trains create magnet fields on the track bed and the train of the same polarity. By controlling the generating of the fields you can hold up the train and propel it forward. Since the train is not actually touching a track there is no appreciable friction except that caused by the surrounding air. In a vacuum you would have no friction.
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