Word: vacuum
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Dates: during 1930-1939
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...operation, the metal to be melted is placed in the crucible, and an air tight cylindrical hood, about 10 inches in diameter by 15 inches in height, is placed over all the parts. By a powerful vacuum pump, the pressure under the hood is reduced to about one billionth of ordinary atmospheric pressure...
...Every Day's A Holiday Paramount made a determined effort to de-umph Mae West by vacuum-cleaning the script, disguising Mae in a fantastic black French periwig. But, like trying to purify the water by whitewashing the village pump, it did not work. To situations considerably less potential than the story of Adam & Eve, Actress West imparts a meaning all her own; despite all directorial and script-writing efforts to make her steer a straight course, she still writhes as she pleases. As sexless a game as selling a sucker the Brooklyn Bridge resembles, in the West vernacular...
...intricacy of the formulas involved is indicated by the fact that in any vacuum tube the electric potentials applied present four variable factors, all reacting to the slighest deviation...
...Repeater" tubes are used to magnify the voice thousands of times in long-distance telephoning; sound movies, the "electric eye," remote control devices, X-ray, and television are all applications of the vacuum tube...
...underlying principle of the vacuum tube, first detected by Edison during his experiments with electric light a half century ago, is that when two wires, one positively charged, and the other negatively, are inserted into a vacuum, and the negative wire or filament is heated, a current passes from the filament through the void to the positive terminal...