Word: air
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Dates: during 1920-1929
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...such superspeed been achieved? German engineers answered last week "chiefly by streamlining the Bremen's hull, by fitting her with a unique bulbous bow." Every layman knows that air friction against a raindrop causes it to assume a bulbous foreshape and to taper off behind-this being the form which offers least resistance to the air. With daring originality, the Bremen's designers gave her below the water line somewhat the shape of a falling raindrop; but above the water line her bow ceases to be bulbous, is keen as a bayonet edge. Luxury features of the Bremen...
...steps in. Japan could stem any Russian advance with comparative ease, in spite of the fact that the Russian army is today extremely well organized and much more efficient than it was in Tsarist days. It is well equipped, well armed and well clad, loyal and enthusiastic. . . . The Russia Air Force is large, well equipped and efficient...
...unobtrusively does Professor Robert Hutchings Goddard of Clark University, Worcester, Mass., work on his study of the air's upper miles by means of rockets that to many a Clark student he is only a tradition. They call him the moon man, in the inaccurate belief that he is trying to reach the moon with his missiles. Last week, Tradition Goddard detonated very loudly. From a 40-ft. steel tower he fired his latest rocket, a huge steel cylinder 9 ft. long by 2½ ft. diameter. A new propellant sent it whizzing from the ground. It rose straight...
...been experimenting for 17 years. The principle of rocket motion is simple-action and reaction. Escaping gases act in one direction, the rocket body in the opposite. The ground is not necessary for the rocket gases to push against in order to propel the rocket. Nor is the air. Such action and reaction can take place in a vacuum, a fact which has driven Professor Goddard on his experiments. His objective is not to see how far he can shoot a rocket but to investigate the physics of the earth's third and outermost blanket of air...
Conductor Fiedler has been troubled by open air acoustics. On the first night, as his music proceeded from the huge, conch-like acoustic shell, queer things happened. Tubas became thunderous, reverberant. Strings quavered into curious silences. Kettledrum tones were like feeble rasps on a gourd. Although untrained listeners were unaware, sensitive Conductor Fiedler was beside himself...