Word: notted
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Dates: during 1940-1949
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Dr. Tsien's rocket liner would be 78.9 ft. long and 8.86 ft. in diameter, with a loaded weight of 96,500 Ibs. It would have small wings and a ramjet as well as a rocket motor. Its maximum speed, 9,140 m.p.h., would carry the ship 1,200...
Uranium is a tricky element. As it comes from the mines, it contains only .7% of the active isotope U-235, whose atoms "fission" (split in two) with a big release of energy. Nearly all the rest is 11-238, an idle isotope which will not fission naturally, though its...
Burn-Out. Plutonium is fissionable and a fine nuclear fuel, but the first reactors did not produce enough of it to replace the U-235 consumed. So their nuclear fuel gradually "burned out," leaving U-238 as a sort of ash. Thus, the reactors of the early atomic age could...
No Ashes. The AEC does not claim immediate 100% efficiency. The accumulation of radioactive fission products as impurities in the uranium, for instance, will certainly cause trouble long before the action is complete. But the contaminated uranium could be purified and "recycled." The AEC did not say so, but there...
The commission is sure the converter will work. The theoretical calculations are complete; the engineering designs are almost complete. No fuel has been bred so far because the reaction will not work except in a full-scale plant. A $3,500,000 plant will soon be built at Arco, Idaho...