Word: geigers
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Dates: during 1940-1949
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...year-old prospector named Ernest Johnson started it all. In two years of experience with radioactive ores around the Eldorado mine on Great Bear Lake, he had noticed that where there was uranium there were also cobalt and nickel. Figuring that the converse should be true, he packed a Geiger counter and pushed up the Roxey Creek valley, 120 miles north of Vancouver, where fallen rock bearing cobalt "bloom" lay in the creek...
Like a Brick. As soon as the news got back to Gold Bridge, a tiny town on the Bridge River, prospectors for miles around got the itch. Some were gnarled veterans of the Gold Rush. Some were tenderfeet. Only one had a Geiger counter, and none knew anything about radioactive ores. That did not stop them...
...average of over 100 cosmic particles of some sort pass through every human head every minute, according to Millikan, but they cannot be felt. Elaborate special apparatus is needed to observe them. Some scientists work with stacks of Geiger tubes, which register each particle that passes through them. Others use special photographic plates, where certain particles leave microscopic tracks of silver in the sensitive emulsion. The best instrument, and the hardest to use, is the Wilson cloud chamber, where the particles make visible tracks of white condensed moisture...
...kill. Anyhow, most damage from atomic bombs comes not from some mysterious ray but from ordinary blast (like high-explosive bombs) and burns (like fire-bombs). An enemy would probably blast and burn, rather than make whole cities radioactive. It would be "inconvenient" to evacuate parts of cities, but Geiger countermen would be around to spot safe areas...
...atomic-energy by-product (radioactive sodium) is being used to study blood circulation. Drs. Myron Prinzmetal and Eliot Corday of Los Angeles' Cedars of Lebanon Hospital inject the sodium into a patient's veins, place a Geiger counter over the heart, record the appearance of the tagged blood on a special machine. Their method, they reported, spots enlarged hearts sooner than any other...