Quenching of a 360 MHz NMR Magnet

Watch liquid Helium boil off to gaseous state from a decommissioned 360 MHz NMR magnet. For every litre of liquid Helium, 750 litres of gaseous Helium is generated. When the Helium boils off the superconductor is no longer a superconductor and this seizes to be a magnet. Watch the steel screwdriver fall off once this happens.

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