Strange metals - Superconducting
A superconductor is cooled down using liquid nitrogen, which then expels magnetic fields. The force of reprepulsion keeps the magnet afloat. It remains stable because of flux pinning.
Superconductivity, discovered in 1911 by Heike Kamerlingh Onnes, is a phenomenon occurring in certain materials at extremely low temperatures (on the order of negative 200 degrees Celsius), characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field (the Meissner effect).
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