The Meissner Result demonstrated by levitating a magnet above a cuprate superconductor, that is cooled by liquid nitrogen Under some conditions, such as exceptionally small temperatures, some ceramics exhibit high-temperature superconductivity (in superconductivity, "high temperature" implies over thirty K). The rationale for this isn't understood, but There are 2 main https://erickggecy.ageeksblog.com/37736568/top-guidelines-of-are-ceramic-pots-safe
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