Word: exact
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Dates: during 1940-1949
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...functional age." Last week Psychologist Ross A. McFarland of Harvard's School of Public Health told the Gerontological Society in Manhattan that a pilot is as old as his vision, or his "motor skill," or his general ability to adjust to the demands of his job. No exact age limit should be set for pilot retirement, McFarland said, but life in the sky certainly does not begin...
...microwaves of certain sharp frequencies. When such waves are shot through ammonia gas, the radio waves are absorbed as long as they are vibrating at the right speed. If they vibrate too fast or too slow, an electronic device retunes the transmitter and makes the waves vibrate at the exact frequency that is absorbed most strongly. Thus the waves, regulated by the ammonia molecules as the escapement of a clock is regulated by its pendulum, keep to a steady beat. Hitched to a "frequency divider," they measure time accurately in ordinary minutes and seconds...
...nearly 30 dollars per head in Mississippi. Taft figured that he had the biggest bugaboo whipped--federal "dictatorship" in the little red schoolhouse. He said, in debate: "The only function of the federal government would be that of an auditor.... It will have no more to say about the exact method by which education shall be administered...
...Atlas and Hottle found that tryptophane (an amino acid) and perchloric acid changed the color of a solution if the virus was present. The color deepened from pinkish brown to dark brown according to the quantity of virus present; if there was no virus, the solution stayed clear. The exact strength of the virus can be fixed by using a spectrophotometer, which measures color by comparing it with a standard. The researchers have been able to make as many as 112 tests a day; normally they...
...submarine U-47, commanded by Lieut. Gunther Prien, surfaced off the Orkneys. Prien noted in the log: "The English are kind enough to switch on all the coastal lights, so I can obtain the most exact fix . . ." At dawn the next morning the submarine lay submerged at a depth of 270 feet outside Scapa Flow. At 7:15 that night it surfaced and the crew ate a warm supper...