The Meissner effect shown by levitating a magnet earlier mentioned a cuprate superconductor, which happens to be cooled by liquid nitrogen Underneath some ailments, for example incredibly minimal temperatures, some ceramics show high-temperature superconductivity (in superconductivity, "high temperature" usually means earlier mentioned 30 K). The reason for it's not comprehended, https://augustfdzzp.buyoutblog.com/39198236/how-define-ceramic-can-save-you-time-stress-and-money