Caption: Meissner effect. This is an effect in which a permanent magnet (golden cube) levitates above a disc of a superconductor material when the superconductor is cooled below its critical temperature, at which point it expels all magnetic fields. In this demonstration, liquid nitrogen at -196 degrees Celsius is used to cool the yttrium barium copper oxide superconductor.

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Keywords: cold, cool, cryogenic, demonstration, demonstrator, diamagnetic, diamagnetism, education, educational, experiment, floating, levitating, levitation, liquid nitrogen, magnetic, magnetism, meissner, meissner effect, metal, metallic, permanent magnet, physical, physics, rotating, spinning, superconducting, superconductivity, superconductor, supercooled, technician

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Meissner effect

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