The Meissner outcome shown by levitating a magnet earlier mentioned a cuprate superconductor, that's cooled by liquid nitrogen Beneath some circumstances, such as exceptionally small temperatures, some ceramics exhibit high-temperature superconductivity (in superconductivity, "high temperature" implies above thirty K). The explanation for this isn't recognized, but There are 2 signifi... https://gregorylljig.thezenweb.com/little-known-facts-about-al2o3-keramik-77584189