The Meissner effect demonstrated by levitating a magnet higher than a cuprate superconductor, and that is cooled by liquid nitrogen Below some ailments, like particularly low temperatures, some ceramics exhibit high-temperature superconductivity (in superconductivity, "high temperature" signifies over 30 K). The rationale for it's not understood, but there are two https://holdenjgbvr.wikitidings.com/6971779/considerations_to_know_about_what_is_ceramic_material