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To: Tom M who wrote (101707)	5/12/2001 12:58:38 AM
From: Real Man	Respond to of 436258

Tom, I work in the field. My Ph.D. thesis was on the theory of high-temperature superconductivity (Not that there is one, LOL!). There are few practical applications. You would expect some since superconductivity was discovered in 1911. The reason is, you have to keep these things much colder than the lowest temperature on the South Pole, even the most "high-temperature" ones. It's so costly, most benefits are lost. The benefit of "high-temperature" ones is that they superconduct already at the temperature of liquid nitrogen (77K, or -196 C, if I remember correctly :); winters in Siberia are -40C=-40F ), which makes it much cheaper. All other superconductors require much more cooling and expensive liquid Helium. High-temperature ones are ceramic, makes very tough to make wires. The most common application now is a superconducting magnet. There are more. A lot more. You can even build a computer based on these things, which will be much faster than one based on silicon. They are trying to do that sort of things at SUNY Stony Brook. But if you find a CO, short it -ggg-