The Meissner effect demonstrated by levitating a magnet earlier mentioned a cuprate superconductor, that is cooled by liquid nitrogen Underneath some circumstances, for instance extremely lower temperatures, some ceramics show high-temperature superconductivity (in superconductivity, "high temperature" implies earlier mentioned thirty K). The main reason for this isn't comprehended, b... https://claytonoqnki.blogtov.com/19823634/considerations-to-know-about-siliziumnitrid