Science: Switch to Breeder

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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