China's new "sky train" floats under an elevated track, using magnets and AI

Image: http://www.xingguo.gov.cn

China this month launched its Red Rail, which is the world's first suspended maglev line, according to a South China Morning Post article. The maglev "sky train" can stay afloat using permanent magnets, even without the presence of a power supply. 

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The 2,600-foot-long experimental rail is located in Southern China. A typical maglev train glides above its track, supported by magnetic repulsion and propelled by a linear motor. This one, however, moves underneath its track at a speed of 50 mph.  It operates about 32 feet above the ground and makes no physical contact with the rail. 

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