Word: periodicities
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Dates: during 1930-1939
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...Every 3.3 seconds, a patient enters a U. S. hospital. During 1938 one person in 14 became a hospital patient. If he went to a general hospital he stayed about twelve days. Each year this average period of hospitalization "is clipped shorter and shorter...
...moon rotates on its axis in the same period in which it revolves around the earth. Consequently the moon presents nearly the same hemisphere toward the earth at all times. It is always the face of the "man in the moon" that we see and never the back of his head...
...arrival of Dr. Richard Prager, distinguished European astronomer, focuses attention on the work being done in the Observatory on the little explored field of variable stars. In a report earlier this year before the Philadelphia Philosophical Society, Observatory officials announced the advances made over a six month period and indicated the immense possibilities for further work...
They reveal the three main characteristics of variable stars--their variable change in color, their period, and their physical make...
Using American universities as an example, Zimmerman stated, "The Universities of this country are now in a critical period. In Europe, to a considerable extent, the professors must play up entirely to popular sentiment. Slowly but surely this dominion of mass psychology, with its foibles and hysteria, is gaining a foothold in American universities...