Word: dusts
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Dates: during 1950-1959
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...combination of the imagination of Jules Oline and Salvador Dali could not have concocted such a triumph of weird and other worldly wilderness as kicked up the dust in Sanders Theatre last night. Fantastic masks, brilliant costumes, lighting of all the colors of the rainbow,--it is impossible to describe, but the nearest thing to it is Barnum and Bailey at their best, minus the elephants,"--and so the writer went...
...Sugiura needed no airplane. Last November, just a few days after Japanese meteorologists detected air disturbances from Soviet tests in Siberia, he set two large porcelain dishes filled with water in the yard behind his Tokyo laboratory and let dust settle into them for 24 hours. He evaporated the water and got from each square meter 150 milligrams (.005 oz.) of dust. Most of it was ordinary dirt from Tokyo's grimy atmosphere, but the remainder was highly radioactive, and could be analyzed...
...radiation came from U-237, a short-lived uranium isotope (half-life: 6.75 days) which does not exist in nature. Nearly all the rest came from elements with middle weight atoms, such as tellurium, zirconium and cerium. The content of the sample was roughly the same as that of dust that came from the great U.S. bomb exploded at Bikini on March...
...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...
Telltale Waves. Radioactive dust tells nothing about the power of the shot, but Japanese bomb watchers have another trick that gives a fair indication. They measure the power of the atmospheric wave set in motion by the explosion. The wave from the U.S. blast at Bikini (2,485 miles from Tokyo) rated .4 millibars in Japan, while the Soviet explosion (1,802 miles from Tokyo) rated only .15 millibars. These figures cannot be taken as directly proportional to the power of the explosions (shock waves can act odd), but observers in Japan estimate the biggest U.S. bang at 12 megatons...