The Meissner effect shown by levitating a magnet earlier mentioned a cuprate superconductor, that's cooled by liquid nitrogen Beneath some situations, like extremely small temperatures, some ceramics show high-temperature superconductivity (in superconductivity, "high temperature" implies above thirty K). The explanation for this is not recognized, but There are 2 major https://paxtonhigeb.signalwiki.com/2061629/not_known_details_about_fused_silica