Magnetic Trains, Cheap Power Brought to You by Superwires?

It’s the future that was supposed to happen a decade ago: high-speed levitating trains, ultrafast computers in every office, and plenty of cheap, clean electricity, all courtesy of superconductors. Hailed as the breakthrough replacement for copper wiring, superconductors can transport electrical current with near-perfect efficiency. But superconducting materials have presented several technical hurdles that have kept futuristic products from reaching the public.

Site – http://news.nationalgeographic.com

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