Word: air
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Dates: during 1920-1929
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...invention is for aviators flying in difficulty. The aviator presses a button which releases compressed air which blows him from his plane. Clear of the plane, the aviator presses another button, which releases another can of compressed gas, which inflates his suit. By spreading his arms he can float to land...
...other invention is an explosive which consists of finely divided carbonaceous material (coal, root, etc.) which liquid air, under cautious control, ignites. It is "cheaper and more volatile than dynamite...
...razing of some old buildings across 15th Street from the Treasury Building in Washington (where the new Department of Commerce building is to rise), rodents and insects were noticed in unusual numbers near the treasury coal and trash vaults. Bug-catcher's were put on guard with "sweet air," a special gas, to kill the roaches. Rat-catchers patrolled the treasury basements by night with small rifles...
Soviet Russia, Holland, Austria, Germany, and France have been the main contributors to the data which is to play an important part in the study of industrial aviation, while a complete list of the correspondents includes Greece, Egypt, India, and Chile. Every noteworthy company engaged in practical transportation by air in the two hemispheres has been reached in the search for operating statistics and organization data. In addition to this thorough canvass of aviation corporations, the Business School has written to the American chambers of Commerce in Athens, Brussels, Tokyo, Lisbon, Calcutta, Rio de Janciro, and every other important city...
...publications of European air-transport corporations show an advanced development of commercial aviation in the Old World, as complete information is provided for the air passengers, including books of elaborate photographic views along the air routes, and comprehensive time tables with connections to all parts of Europe, Asia, and Africa. Posters displayed by aviation corporations in France, Germany, and Russia, and sent to the Business School show that a keen competition exists in the air transportation business of Europe...