Word: drs
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Dates: during 1950-1959
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Since this is the case, argue cosmologists led by Dr. George Gamow of George Washington University, all the elements must have originated just after the great event when the ylem exploded. In the March Johns Hopkins Magazine, two cosmologists of the Gamow school, Drs. Ralph A. Alpher and Robert C. Herman, tell how they think the elements were formed...
...beta-decay" made the nuclei more stable -able to capture more neutrons. Bigger & bigger they grew, until all the elements in the universe had been formed. Then this growing process stopped; there were no more free neutrons, and the gas had become too cool to support nuclear reactions. Drs. Alpher & Herman believe that all the elements were formed in less than an hour after the great event...
Next step was to test this theory by a controlled experiment. Financed by an Air Force grant, Drs. Ewing and Press went to frozen Lake Superior last winter and exploded blasting caps above the ice. With "geophones" (small seismographs) they listened for waves...
...military techniques are where you find them. Last week Drs. M. Ewing and Frank Press, Columbia geophysicists, told how they discovered a practical method of measuring from an airplane the thickness of Arctic ice. They started by studying Krakatoa Volcano, near Java, which had its most famous explosion almost 70 years...
...Drs. Ewing and Press this looked interesting. The air wave and the sea wave did not travel at the same speed or by the same route. Why did they arrive together? Further study of the records showed that only the air wave could be a direct effect of the volcano's explosion. In distant places like England, the sea wave recorded on the tide gauges must have been "induced" by the air disturbance. Here was dramatic proof that events in the atmosphere do affect the sea below...