Word: layers
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Dates: during 1970-1979
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...hearing, Coleman promised to make a decision by early February. His choice will not be easy. A ruling in favor of the Concorde would bring down the wrath of environmentalists, who charge that the craft is too noisy, burns too much fuel and is a threat to the ozone layer. A decision to bar the plane would be considered an unfriendly act by the British and French and could sour U.S. relations with both countries...
...first time, however, concerns about the environment-rather than airworthiness-are playing a major role in determining the acceptability of a foreign aircraft. Some scientists have speculated that the Concorde's high-altitude emissions of nitrogen oxides could contribute significantly to the destruction of the ozone layer that screens the earth from an overdose of the sun's ultraviolet rays. Using these reports, the Federal Aviation Administration estimates that simply granting the pending Franco-British request for six flights a day could lead to 200 additional cases of skin cancer a year...
...difficult to locate the exact moment when the psychological change occurred. A cumulative process, it owes much to the formal feminist movement?the Friedans and Steinems and Abzugs. Yet feminism has transcended the feminist movement. In 1975 the women's drive penetrated every layer of society, matured beyond ideology to a new status of general?and sometimes unconscious?acceptance...
...curricular activities. Three floors of classrooms constitute the entire school. The dusty halls, off white and drab brown walls, dark floors, iron stair cases and dim lighting all contribute to the musty atmosphere of the 50-year-old building. Everything in the school seems to be coated with a layer of dust. Hall cites the school's lack of recreational facilities and limited extra-curricular activities as its chief disadvantages. "We are a 9 to 3:30 workshop-type school," he explains...
Trying to answer that basic question, the experts discovered that the bullet-marking characteristics of Sirhan's Iver Johnson .22-cal. revolver had changed since the night it was fired in the Ambassador Hotel. The panel found that the inside of the barrel was fouled by a thin layer of copper alloy that probably stemmed from test firings by the Los Angeles police. The panel squeezed off eight shots into a tank of water, compared the bullets with the original three, studied the barrel of Sirhan's gun, and finally gave up. They announced that they could...