SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Maglev train. Magnetic levitation (Maglev) train seen in a station in Shanghai, China. This train uses a T-shaped guideway (rail) containing electromagnets that interact with magnets onboard the Maglev train. These magnetic interactions levitate the train to about 10mm off the guideway. The power supplied to the magnets in the guideway is then varied to create a travelling magnetic field along the guideway which pulls the train. This system requires far less power than conventional trains and reaches speeds of up to 400 km/h. It also creates negligible noise and air pollution along its guideway. Photographed in 2013.
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