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S.Korean experts seek to verify room-temperature superconductor claim
(www.reuters.com)
This is a most excellent place for technology news and articles.
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this thing would enable very strong superconducting magnets to work without cryogenic cooling. so, portable MRIs, better maglev, maybe perhaps easier fusion.
another interesting property is that resistance is zero. that means that you can transfer energy losslessly, saving some 10% of it this way. or you can make coils of this thing and charge/discharge them as needed, but this time without cooling: https://en.wikipedia.org/wiki/Superconducting_magnetic_energy_storage