Word: metalized
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Dates: during 1950-1959
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Angered, one of the lions slammed him to the ground with a great paw. Two other lions began cuffing him while horrified spectators called for help. Hearing the screams, Margarethe Storch, an attendant, crawled into the arena banging two metal shields together...
...drill grinds no metal against teeth or gum tissues. Instead, a liquid containing fine particles (usually of aluminum oxide) is forced against the tooth by ultrasonic vibrations (29,000 per sec.) of the Cavitron's tiny steel tip, and these particles neatly bore into the tooth without noise or pressure...
...electrically operated metal hand for victims of paralysis and for amputees with some types of artificial hands has been invented by Charles V. Giaimo, vice president of Lionel Corp. (toy trains). Manufactured on a nonprofit basis by Lionel, the glovelike device fits snugly over the thumb and forefinger. Two powerdriven cables move the paralyzed fingers; the cables in turn are controlled by a pushbutton that can be worked by the other hand, by blowing through a tube or by pressure under the armpit. The metal hand has already enabled handicapped individuals to write, use the telephone and eating utensils, brush...
...Bill Allen's 707. Boeing has turned out 22,500 planes of more than 200 different types. In the '20s and '30s, Boeing's name was on some of the world's fastest pursuit ships and bombers. Boeing pioneered today's streamlined all-metal transports, built the famed four-engined Boeing "Clippers," the first for regular transatlantic service. Betting its pocketbook on performance, Boeing has sometimes lost money. But on such bombers as World War II's B-17 and B29, the design gambles have paid off. By 1945 half the nation...
...youngsters worked on a family of exciting new transports. In 1933 Boeing put out its 247, the country's first twin-engined, all-metal transport that could keep its altitude with a full load on one engine. Boeing also put in such advances as trim tabs, supercharged engines and an automatic pilot, built 55 of the 247s for its United Air Lines sister subsidiary...