Word: geigers
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...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...
Last week, for the first time since 1943, such Geiger-counter hunting for uranium was opened to any prospector. In the House of Commons, Trade and Commerce Minister Clarence D. Howe announced the end of the ban on private uranium mining,*promised prospectors $2.75 a pound for ores with a minimum of 10% uranium oxide. Said Howe: the government is seeking "discovery of important deposits. At the moment we know of only one. We think there are others...
Philadelphia's El-Tronics Inc. took no chances. In magazine ads it bragged: "At last, an inexpensive Geiger-Miiller counter set [a radioactivity detector] for only...