Word: brightnesses
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Dates: during 1930-1939
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...Heard a remarkable report on experiments that proved intelligence is affected by environment. Psychologist George Dinsmore Stoddard, director of the Child Welfare Station in Iowa City, Iowa, reported that: 1) illegitimate children of feeble-minded mothers and laboring fathers, after being placed in good homes, turned out to be bright children; 2) apparently normal youngsters, kept in an overcrowded orphanage, "deteriorated...
Modern surgery gave one Alexander Peter, Hungarian peasant, a bright idea when he wanted to mortgage his 320 acres. Legally that was impossible because the land was entailed for the successive benefit of any children Peasant Peter might beget before 1952. But Farmer Peter wanted to hypothecate some of the property to buy farm machinery. And although married, he had no children, wanted none, expected none. To convince the court which had jurisdiction of his farm that he was going to have none, he had a vasectomy performed on himself. This was only temporary emasculation, ruled the judges, and might...
...nearest neighbor in interstellar space) was reported recently by astronomers of the University of Chicago's Yerkes Observatory in Wisconsin (TIME, May 23). Last week Dr. Fritz Zwicky of California Institute of Technology announced discovery of a star at the other extreme of cosmic brightness-400,000,000 times as bright...
...which a series of very fine, parallel lines are ruled close together. In combination with lenses, such a grating breaks up a beam of mixed light, such as the light from a star, into its component wave lengths-that is, it furnishes, as a prism does, a spectrum of bright and dark lines which identify the fundamental elements of matter. The iridescence of mother-of-pearl is a diffraction effect, caused by numerous tiny grooves in the smooth surface of the shell. The making of diffraction gratings is a high-precision job. It is done with a complicated ruling engine...
...that NBC is broadcasting its pictures only northward of the Empire State Building. So Brooklynites were given admission cards to an A. T. C. demonstration in Manhattan. There 500 guests crowded into a small room to try to watch an hour show of film and live talent on a bright green screen, five inches square. Many strained their eyes so badly that they left the show seeing pink spots...