Word: uranium
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...Katanga's Union Minière du Haut-Katanga; there, a few rounds of cannon and rocket fire knocked out the powerhouse transformers and punched holes in some building walls. Next day, U.N. Ethiopian flyers zoomed out to strike at other targets-first Katanga's old uranium mine at Shinkolobwe, which produced the U-235 for the U.S.'s first atom bomb, then at Luena, a coalmining center...
...detonator of a thermonuclear bomb is a fission bomb containing plutonium or uranium 235, and its explosion sets off the main charge of fusion material, which is essentially deuterium (heavy hydrogen). Fission detonators are expensive, but a single one can explode any amount of comparatively cheap fusion material. Result: the bigger the bomb, the cheaper it is in terms of explosive yield. Clark figures that a ten-megaton bomb costs somewhat more than $1,000,000, mostly for the detonator. But further increases in yield cost only about $5,000 per megaton, so that the price...
...More deadly yet would be large fission-fusion-fission bombs whose outer blankets of cheap uranium 238 yield energy as well as deadly fission products. Clark believes that any nuclear power could easily destroy a nation with the close-range fallout effect from this type of bomb, but he thinks that the human race as a whole would be more resistant...
...Closer Look. Thus viruses got defined and classified. But just how the virus core gets into a cell remained a mystery, even after Dr. Robley C. Williams, a member of Stanley's California team, devised the method of plating the particles with gold or uranium to get clearer electron micrographs. Then, two years ago at Cambridge University's Cavendish Laboratory, Drs. Sydney Brenner and Robert W. Home made an illuminating refinement on electron micrography, revealing far more intimate details of virus structures and differences, and clues to how viruses work...
...technical fact, the transfer of the reactor and 13,000 grams of enriched uranium will take place under the auspices of the International Atomic Energy Agency, of which both the U.S. and Yugoslavia are members. The agency, an outgrowth of Dwight Eisenhower's Atoms for Peace proposals of 1953, is supposed to make sure that the reactor is used only for peaceful purposes. The transfer was first approved 13 months ago by John McCone, then chairman of the Atomic Energy Commission, and was reaffirmed a few weeks ago when the AEC signed an agreement to supply the uranium fuel...