Word: shelling
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Dates: during 1950-1959
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...South America, giant sloths (Mylo-dons) as big as men survived long enough in the high wilds of Patagonia to be killed by ancient Indians. Their skins have been found in caves. A giant armadillo with a shell 12 ft. long was hunted too. The strange beasts reported by Indians living in Patagonia today may be giant sloths or armadillos that the ancient hunters missed...
...ends up in human tissues. Also, some insects have developed immunity to it. With Pa van's discovery, researchers in the U.S., Britain, Italy and Germany went to work. Last week a three-man team headed by Bonn University Chemistry Professor Friedhelm Korte, who also runs a Shell oil company laboratory in suburban Bonn, announced it had at last synthesized Iridomyrmecin. Cautioned a Shell spokesman: "We cannot say how much the new stuff will cost and when it will be marketed, because we do not know ourselves...
...architecture blossoms out in billowing forms of reinforced concrete, many a modern architect is turning back to study the work of the handful of pioneers who blazed the way for modern shell structures. One of the foremost and least known is Engineer Eduardo Torroja y Miret, 59. A short (5 ft. 4½ in.), bald-domed Spaniard, Torroja was throwing wafer-thin slabs of concrete up into space as early as 1933. His race-track stands, soccer stadiums, marketplaces, churches and aqueducts are only now getting the recognition they deserve as ancestors of some of today's most spectacular...
...payoff for Torroja came when he began to receive commissions for structures few engineers would then have cared to tackle. As early as 1933 he had covered the marketplace at Algeciras with a 156-ft. spherical dome, a shelter still ranked as a classic of shell construction. The next year he evolved a scheme for the Madrid Hippodrome, in which a series of soaring shell roofs (see color) were so delicately cantilevered that a thin, vertical tie rod behind the stands was all that was needed to keep them in equilibrium. In Spain's Civil War, the Hippodrome...
...span) to bridge the Esla River at Zamora, Spain. His gull-wing roof over Las Corts soccer stadium in Barcelona is one of the world's most breathtaking architectural sights. Even in the small churches and shrines that Torroja has built for Pyrenees villages, he has exploited shell structure to produce new forms whose strength comes from shape and whose beauty springs from mathematical curves possible only in modern reinforced concrete. Torroja is fond of walking his institute visitors under the sickle-shaped ribs of the pergola that spring from the outside wall and curve elegantly overhead like jets...