Word: threshhold
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Dates: during 1950-1959
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...ANGELES, Jan. 13--Walter O'Malley's melodramatic search for a home for his waifs from Brooklyn produced another cliff-hanging episode today. The Dodgers almost made it to Wrigley Field, only to halt on the threshhold...
...America's largest manufacturers of airplane equipment, sums up the opportunities for a young engineer in its 1953 brochure: "For the aeronautical research worker and engineer, there is an evergrowing challenge to contribute to the progress of a field firmly established, yet limitless in potentialities. Working daily at the threshhold of the unknown will bring the engineer into many closely related fields. An aircraft increase in size and speed, the role of the engineer and research worker becomes even more important...
...recent years, as air speeds have risen across the threshhold of the sound "barrier," a specialized aspect of aerodynamics, aeroelasticity, has come firmly into its own. For planes to fly faster, it was found that their life and control surfaces had to be thinner, in order to out down the drag offsets of air resistance. As these structures became thinner, it was seen that at certain speeds, they developed a noticeable flutter. When wings flutter, their airfoil shapes are distorted, and they sometimes lose all their lifting ability...