The Meissner Result demonstrated by levitating a magnet over a cuprate superconductor, that is cooled by liquid nitrogen Under some conditions, which include exceptionally very low temperatures, some ceramics exhibit high-temperature superconductivity (in superconductivity, "high temperature" indicates above thirty K). The explanation for this is not recognized, but There are https://claytoneeedc.wikipresses.com/6780130/details_fiction_and_aln_thermal_conductivity