Word: gammas
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Dates: during 1930-1939
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...Bart J. Bok, assistant professor of Astronomy, Dr. Alfred C. Lane '83, former professor of Geology at Tufts College, and Dr. Alfred S. Romer, professor of Zoology are the speakers. The meeting is sponsored by the Harvard chapter of Gamma Alpha...
...Howard Hughes was eating a combination breakfast and luncheon in Los Angeles. To this oilman-cineman-aviator came a telephone report that weather was fine all the way across the continent. Cramming a last mouthful Howard Hughes dashed out to Burbank, where for three days a stock model Northrop "Gamma" with a special engine had been waiting with 700 gallons of gasoline aboard. Stopping neither to get food nor to tell anyone but his timer that he was out to add the transcontinental non stop record to the world landplane speed mark he already holds (TIME, Sept. 23), he gave...
...Potsdam made balloon flights up to five miles, found the radiation seven times stronger than at the earth's surface. Thus the rays were seen to be coming in from the cosmos beyond Earth's blanket of air. Calculation revealed them as more penetrating than the gamma rays which emerge from radium at 3,000,000 electron-volts. Stopped by the War, the cosmic ray hunt started with fresh impetus after Peace. In the U. S., brilliant, imaginative Robert Andrews Millikan of California Institute of Technology, who had won the Nobel Prize for isolating and measuring the electron...
...Ernest Orlando Lawrence, who has an 85-ton magnet to play with on the University of California campus, produced a beam of 10,000,000 neutrons a second by smashing lightweight elements with deutons (nuclei of heavy hydrogen). With "slow neutrons" lately it has been found possible to produce gamma radiation from silver. For mathematical reasons that physicists find increasingly hard to translate into English, slow neutrons braked by a paraffin shield have more effect on the target than fast ones, are currently lionized in every physics journal...
...Curie-Joliots' first results in artificial radioactivity have been duplicated and extended in a half-dozen countries, especially by California's Lawrence and Italy's Fermi. Dr. Lawrence obtained 5,000,000-volt gamma rays from salt, evoked the possibility of injecting harmless but radioactivated salt compounds into the human body as a cancer remedy. Dr. Fermi has coaxed radiations of beta particles (fast electrons) from phosphorus, iron, silicon, aluminum, chlorine, vanadium. copper, arsenic, silver, tellurium, iodine, a dozen others...