Word: terraine
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Dates: during 1920-1929
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...motive force gliders use air currents which swell over hilly terrain. Dune country, such as that near Chicago and off the Carolinas, is best for gliding. Knolls, ranges or terraces should slope toward the prevailing wind. One knoll should be 50 to 200 feet above all. And all should be bare of poles, trees, shrubs or other obstructions...
...glider is yanked into a 10 to 15 m. p. h. wind, which supplies lift. Thereafter it is the pilot's job to jockey his plane upon the air currents ascending over the rolling terrain. Air usually rises to twice the height of an obstruction. If the pilot can get above a cloud he has an easy time. Wind always rushes up over the edge of a cloud. And the up-moving air is what the glider pilot wants...
Smoke Clouds. Near Stuttgart, Germany, guns spit up bombs; the bombs burst in air and from them spread wide layers of smoke clouds. Flyers in planes could not see terrain or buildings below the smoke. The device seemed a good protection to the Germans against an inimical air attack...
Bamberger's Department Store, in Newark, N. J., last week extended a store "service." From now on it will be possible for residents of 297 towns and cities in 1,218 square miles of surrounding terrain to telephone Bamberger's free (of toll charges. The number: Long Distance, OOOI...
...University of Edinburgh, only child of Sir Francis Grant Ogilvie (chairman of the British Geological Survey Board), took New York City as the illustration of what can happen to a district happily situated geographically. New York's tides fluctuate only four to five feet.* That helps shipping. The terrain changes practically not at all. Travel routes naturally converge toward the city. He recommended that the States of New York, New Jersey and Connecticut cede land for the formation of a State of Manhattan. The natural Manhattan area now contains 9,000,000 people, will in 40 years carry twice...