Maglev Trains

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  G. R. Polgreen was the first American to patent a Maglev train design on 25 August 1959. Maglev trains work by a magnetic field guiding the train down a track.  A guideway is laid on the track, which is a magnetized coil. This coil pushes them away from the magnets on the bottom of the train. This causes the train to levitate.
See the source image According to How Stuff Works, "Once the train is levitated, power is supplied to the coils within the guideway walls to create a unique system of magnetic fields that pull and push the train along the guideway." The electric current in the guideway changes direction constantly to allow the train to move forward. The change in the polarity causes the magnetic field to pull the train forward and for the field behind the train to push the train forward.
The use of magnets allows the train to be "floating" in mid-air, which reduces friction. This allows a maglev train to travel at much faster rates than traditional trains. Maglev trains can reach speeds over 300 miles per hour and, "twice as fast as Amtrak's fastest commuter train" according to How Stuff Works.
See the source image The next steps in advancing this technology would be making the hyperloop a way of transportation. Currently, Elon Musk's company Space X is working on a hyperloop design that travels at much faster speeds than any trains now. A hyperloop is a variation of a maglev train that is located within a tube.





https://science.howstuffworks.com/transport/engines-equipment/maglev-train1.htm
http://www.hyperloop.global/progress

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