Science: Cold Magnet

One of the most pervasive and mysterious phenomena in the universe is magnetism. As the scientist knows it, magnetism is the invisible pull that surrounds magnets, electric currents and even the electrons that circle the heart of the atom. Physicists do not wholly understand it, but they use it constantly. All the hundreds of thousands of electrical devices in the modern world have fields of magnetic force coursing through them. Any discovery that promises stronger or better controlled magnetism is immensely important to both practical industry and theoretical science. Such a discovery has just been made: four Bell Telephone Laboratories scientists*...

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