Back from a one-week official visit to Russia, Sir John Cockcroft, in charge of research for Britain's Atomic Energy Authority, reported that the Russians are working hard on the problem of controlled fusion. He estimated that the situation is about "level pegging" between the Russians on one side, the British and Americans on the other. The Russians have an experimental machine which is virtually the twin of Britain's famous Zeta. But they built it in six months, while Britain needed two years. They have also constructed a "mirror machine," a U.S. specialty which is another approach to fusion power. "These...
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