Word: lighter
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Dates: during 1970-1979
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Giant airships vanished from the skies after the hydrogen-filled Hindenburg exploded and burned in 1937. But airship enthusiasts, buoyed by little more than hope, have remained at their drawing boards, designing huge lighter-than-air dirigibles that they believe could still compete effectively against other forms of transportation...
...airship, a winged airplane and a lifting body (a shape giving aerodynamic lift). The proposed craft, which looks remarkably like a porpoise, was designed by a group of engineers organized as the Megalifter Co. of Goleta, Calif., after NASA'S Ames Research Center invited proposals for lighter-than-air ships to transport heavy, bulky cargoes. At the roots of its undersized wings, which resemble Flipper's flippers, are four jet engines with a combined thrust of 164,000 Ibs. There are also two small engines near the wing tips to control yawing and rolling. The 650-ft. hull...
...sense, there has always been a black middle class, even during slavery, and it was largely drawn along color lines (see BOOKS). The field hands on the plantations tended to be dark. The house servants, who were better treated and sometimes even taught to read and write, were usually lighter-skinned mulattoes...
...with their own coming-out parties and cotillions. They distinguished themselves from the black masses by quitting the Baptist and Methodist churches for the Episcopal, Congregational, Presbyterian or Roman Catholic denominations. Though treated like any other blacks by the white population, they took what comfort they could in their lighter skin. Some Negro colleges even requested photos from applicants to make sure they did not admit too many dark-skinned students...
Since then, she has sung most of the roles written for lighter soprano, both lyric. and coloratura. In the process, she has come to be regarded by critics as one of the world's three or four operatic "superstars." She will soon make her debut with the Metropolitan Opera...