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Show LARGEST SUPERCONDUCTING MAGNET Coils of the world's largest superconducting magnet are lowered into their steel yoke at the AEC's Argonne National Laboratory near Chicago. These coils, which weigh 110 tons, operate at temperatures near absolute zero, about 451 degrees below zero, Fahrenheit. At these temperatures the magnet generates 18.5 kilogauss (a unit of magnetic field strength) with essentially no consumption of electricity. The magnet will be used with the world's largest bubble chamber for detecting high-energy atomic particles. (Argonne National Laboratory photograph) |