The Meissner Result demonstrated by levitating a magnet over a cuprate superconductor, that is cooled by liquid nitrogen Under some conditions, which include particularly very low temperatures, some ceramics exhibit high-temperature superconductivity (in superconductivity, "high temperature" means higher than 30 K). The main reason for this is not comprehended, but https://elliottmlhcx.prublogger.com/38128261/not-known-details-about-carbre-de-silicium