Word: fissioned
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Tipoff ingredient was the U-237. In the original atomic bomb of 1945 the active substance was U-235, the rare uranium isotope that fissions (splits) readily when struck by slow-speed neutrons. U-238, the abundant isotope of uranium, does not fission in this way, but when it is struck by high-speed neutrons from a sufficiently powerful detonator, it undergoes a variety of nuclear reactions. Some of its atoms split, splattering into middleweight atoms (fission products) and giving off enormous energy. Other U-238 atoms absorb a neutron, then eject two neutrons, turning into atoms of telltale...
...presence of U-237 as well as fission products in the dust that fell on Tokyo convinced Dr. Sugiura that the Soviet bomb of last November was a "super-U-bomb" like the U.S. Bikini job of 1954 (then popularly known as the hydrogen bomb). In short, it evidently got most of its energy from the fission of cheap, plentiful...
Playing and working in Phoenix, Ariz., energetic Inventor Lee de Forest, 82, one of radio's and TV's most illustrious ancestors predicted: 1) the world will run out of fissionable power-producing uranium within several hundred years; 2) a successful fusion reactor, i.e., a tamed H-bomb type of power generator, will never be achieved; 3) it matters not, because solar energy will eventually outshine both fission and fusion sources as man's chief power supply. These,matters settled, Dr. de Forest sounded off on the horrors of present-day radio and TV advertising. "I wish...
...years after Congress voted to open the field of nuclear fission to private enterprise, U.S. industry committed itself to spend more than $150 million on five atomic power plants. But not one private nuclear power plant is under construction. The big obstacle: lack of liability insurance...
Rain & Fogged Film. To find out whether the air mass actually traveled around the earth, the Japanese wrote to scientists along its theoretical route asking if they had seen any signs of it. Confirmation came from Paris, where radioactive rain had fallen. The fission products from faraway Nevada had also fogged photographic film as they drifted over Europe. Dr. Miyake is sure that the rest of the trajectory mapped out for the "tracer" is also accurate. The north-and-south waviness of the route is characteristic of the high altitude winds that blow around the earth in north temperate latitudes...