Nuclear reactors can be made in many ways. Some look good on paper but turn out to be impractical in actual use. In its effort to develop low-cost nuclear power, the Atomic Energy Commission has long experimented at such places as Brookhaven National Laboratory on Long Island, with new liquid reactor fuels—a low-melting alloy of U-233 and bismuth, a solution of uranyl sulfate, and others. But AEC soon discovered that the program was leading only to prohibitively expensive means of obtaining competitive electrical energy, and last week it announced a shift in emphasis:...
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