'Meissner Motor', rotor, Argonne Nat Lab

'Meissner Motor', rotor, Argonne Nat Lab

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Credit: US DEPARTMENT OF ENERGY / SCIENCE PHOTO LIBRARY

Caption: The central rotor of a Meissner motor. This motor utilises the Meissner Effect - a superconductor will try to repel an applied magnetic field. In the motor, there is this central aluminium disc, under which are mounted 20 small electromagnets. Below this are placed two small 'pucks' of an yttrium-barium-copper superconductor, under opposite sides of the rim. The electromagnets are energised by a power supply and the pucks are cooled using liquid nitrogen. At this point, the repulsive Meissner Effect spins the motor.

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Keywords: conductance, conducting, conductivity, conductor, meissner, meissner motor, motor, physics, superconductor

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