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Originally Posted by Fruitacious B
I saw that at Science Central in elementary school. Isn't it the same concept that's used in those super high speed trains in Asia?
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Not sure if it's exactly the same. Some high speed trains use electromagnets to lower friction by allowing the train to levitate a few centimeters above the tracks. I don't think they are required to be super cold like the object in the video. They use a similar technology in theme park rides like "Superman"(the ride).