Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain materials, called superconductors, when cooled below a characteristic critical temperature. Quantum locking is a process by which a superconductor is "locked" into place within a magnetic field, as a result of the Meissner effect. This property allows for a superconducting material suspended in a magnetic field to become fixed so that it will not re-orient itself without external assistance. Sources: Carroll Whitacre #Science #Physics #MaterialsScience