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Meissner effect

An experiment to illustrate the Meissner effect in a superconductor. It was performed at the University of Twente in Enschede, The Netherlands, under the supervision of Prof. Alexande.
The falling off of the magnetic flux within a superconductor (see superconductivity) when it is cooled to a temperature below the critical temperature in a magnetic field. It was discovered by Walter Meissner (1882–1974) in 1933 when he observed that the Earth's magnetic field was expelled from the interior of tin crystals below 3.72 K.

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