Five years ago a distinguished Russian-born scientist named Peter Kapitza committed an imprudence. He was, at the time, comfortably installed in England. His mistake was that he went back to Russia.
At Cambridge University's famed Cavendish Laboratory, Peter Kapitza had done such astonishing work on magnetism and low temperatures that they built a special laboratory for him. By building up and suddenly short-circuiting huge accumulations of electricity through a set of coils, Kapitza produced magnetic fields five times more powerful than any before.
To keep the coils from blowing up, Kapitza cooled them with liquid helium (four degrees or less above absolute zero)....
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