Word: rocke
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Dates: during 1930-1939
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...mechanics. This work is under the direction of Professor Arthur Casagrande. The use of earth, either for construction purposes or as foundations for carrying structures, is as old as human civilization itself. For centuries builders have witnessed gradual or sudden subsidences of their structures, when not built on solid rock, sometimes with disastrous consequences. It is a perplexing fact that this tremendous amount of human experience did not crystallize into a scientific approach to the mechanics of soils until about fifteen years...
...famed Arthur Holly Compton, worked for three months in the shaft with a cosmic ray recorder of his own design, containing four ionization tubes. These were arranged in line so as to exclude cosmic rays shooting down the open shaft, to catch only rays boring vertically through the rock. From the surface to 1,600 feet Mr. Wilson took measurements at 39 stations. The intensity diminished steadily as he descended, but at the bottom he was still getting a few rays of extraordinary penetrating power, at the rate of about eight...
These were said to be the deepest authentic cosmic ray recordings ever made. Mr. Wilson, believing that ordinary electrons or protons could not penetrate 1,600 feet of solid rock, came to the conclusion that the rays must be either neutrinos or X-particles, both relative unknowns. For although atomic physicists speak of neutrinos (small, uncharged particles with a mass less than that of an electron) as familiarly as a carpenter does of a tenpenny nail, they have never come to light experimentally. "X-particles," although they have turned up experimentally (TIME, Nov. 29), have yet to be explained...
...second place he will record explosion waves on the surface of the ground and compute from them the depths of the different rock layers and the velocity of sound in the rock layers...
February 6, Maxwell Finland '22, instructor in Medicine, "Colds, Influenza, and Pneumonia"; February 13, John Rock '14, assistant in Gynaecology, "Menstrual Disorders and the Menopause" (for women only); February 20, F. Dennette Adams, instructor in Medicine, "Overweight and Underweight"; February 27, Channing Frothingham '02, Overseer, and Richard H. Miller '04, clinical professor of Surgery, "Pain in the Abdomen...