The Meissner Influence demonstrated by levitating a magnet over a cuprate superconductor, that is cooled by liquid nitrogen Under some conditions, which include particularly lower 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 there https://magneticbeadscellisolatio47924.wikisona.com/2079616/the_2_minute_rule_for_what_is_ceramic