Maglev is short for magnetic levitation. It is a method of transport in which high-speed vehicles are lifted by magnetic repulsion, and propelled along an elevated guideway, by powerful magnets attached to the vehicle.
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.
Today, many countries have started using powerful electromagnets to propel high-speed trains called maglev trains. These trains will float over a guideway, using the basic principles of magnets to replace the old steel wheel and track trains.
The trains do not physically touch the guideway, do not need engines, and do not burn fuel. Instead, they are magnetically propelled by electric power fed to coils located on the guideway.
Maglev is cheaper, faster, non-polluting, and safer than normal modes of transport.
Many countries already have maglev trains. The world’s first commercial high-speed mag. netically levitated train was implemented in Shanghai, China, in 2004. It travels at a speed of 430 km per hour.