Word: semicircular
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...Hatlestad model has a conventional propeller, but in place of wings there are freely spinning horizontal rotors 14 in. long and 2 in. in diameter. The rotor is composed of two semicircular vanes on an axis-in cross section shaped like the letter S. As the plane moves forward, air pressure causes the rotor to revolve backward. That action, combined with the forward movement, produces low pressure on top of the rotor, increased pressure (lift) on the bottom. If the motor should quit the rotor continues to spin in descent, the lift force stretching the plane's course into...
...next thrust himself into the picture with a plan for a semicircular belt system connecting New England and Baltimore, to distribute Midwestern products to seaboard. This again stepped on too many toes. He was ordered to sell his interest in the Wabash (now in receivership) and Lehigh Valley, which he did, to the Pennsylvania, at $23,000,000 clear profit...
...week Denver pride looked to a new and climactic building in the Civic Centre. Facing the Capitol was a fine new white granite City & County Building. It had been abuilding for three years and now its bronze doors (world's largest) were thrown open to the public. Around its semicircular colonnade is an art museum as well as municipal offices. Designed by the Allied Architects Association, the structure suggests a coronet on the city's brow. In it are twelve kinds of marble and $5,000,000 of taxpayers' money, a far advance beyond Denver's first City Hall...
...Pier 5, just north of San Francisco's clock-towered Ferry Building, is the semicircular "landing button" or artificial beach of Air Ferries Ltd., whose red Loening amphibians flash back and forth across the bay between San Francisco and Oakland every 20 min. On the button last week gathered local bigwigs to watch Dry-goodsman Marshal Hale and youthful James Rolph III, son of California's Governor (both directors of Air Ferries), slice a great cake on which stood one birthday candle. One would never have guessed from the exuberance of the affair that Air Ferries...
...look under the sea for Old Chersonese. Fishermen had told him of a wonderful submarine city off the coast of Sevastopol. Russian scientists set to work soon afterward with divers and giant searchlights, found Old Chersonese 210 ft. offshore. The city stretches extensively under water, is surrounded by a semicircular wall. Divers have walked about the large paved market place, now grown over with seaweed, have seen fish swim about in the crumbling houses. So far only southern and eastern portions have been charted. Scientists think that Old Chersonese is more than 2,000 years old, was sent...