The Meissner Effect demonstrated by levitating a magnet above a cuprate superconductor, which is cooled by liquid nitrogen Less than some disorders, which include particularly lower temperatures, some ceramics exhibit high-temperature superconductivity (in superconductivity, "high temperature" means higher than 30 K). The main reason for this is not comprehended, but https://magnetic-beads-cell-isola71368.webbuzzfeed.com/39577814/advanced-ceramics-an-overview