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Originally Posted by Polyglot27
Just as an aside, I remember that when the cold fusion story broke, other scientists were talking about high temperature super-conductors. ("High temperature" here means just a few degrees above absolute zero). I wonder what happened to that line of research.
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High-temperature superconductor research is alive and well. It certainly does NOT just mean "a few degrees above absolute zero", by the way; a very important class of materials are those which are superconductors above 77K - the boiling point of liquid nitrogen - since that is easily and cheaply available. There are now a number of materials available which superconduct above this temperature; most notably a substance called "yttrium barium copper oxide" or YBCO, which is a superconductor up to a temperature of 90K.