Word: nitrogenated
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Ivan Yemilianov, a senior designer of the stricken unit, said Soviet engineers planned to entomb the reactor in concrete for hundreds of years to allow the radioactive substances to decay. The scheme will require workers to pump an insulating layer of liquid-nitrogen refrigerant into a tunnel just beneath the reactor. The crippled unit will then be encased within a concrete barrier that will descend 96 ft. into the ground. Engineers were also spreading a plastic film over some 300,000 sq. yds. of soil a day to prevent further contamination and hold tainted earth in place...
...cautious. It suspended manned flights for 21 months after the Apollo fire, a period of agonizing self-appraisal. Admitting that no one had realized the extent of the fire hazard in a capsule full of pure oxygen, NASA switched to cabin atmospheres that consisted of 60% oxygen and 40% nitrogen while the spacecraft was on the pad. The agency also developed a new type of hatch that could be opened in five seconds. As NASA workers last week searched for answers to the Challenger tragedy and pondered the future of manned space flight, they could find some solace...
...products. The company's financial performance has lagged behind such rivals as Du Pont and Monsanto for the past several years. To perk up profits, Union Carbide is expected to put less emphasis on petrochemicals so that it can concentrate on its more successful business lines, including industrial gases (nitrogen, argon, oxygen) and consumer products (Eveready batteries, Glad bags, Prestone antifreeze...
...another way by offering the Prime Minister a sop on acid-rain pollution, which has long been a sore spot in U.S.-Canadian relations. Canadians charge that at least half the acid rain currently damaging their forests and destroying aquatic life in their lakes is caused by sulfur and nitrogen oxides released into the atmosphere by fossil- fuel-burning plants and smelters in the U.S. The Reagan Administration has maintained that the evidence against U.S. industry is incomplete...
...accident or design, they said, a large quantity of water had been poured into the holding tank, reacting with the MIC to produce enough heat and pressure to pop the valve. One possible source: a utility station where a pipe marked "water" is located next to one marked "nitrogen" (used to pressurize the tank). Most likely, the investigators suggested, someone connected the wrong pipe to the tank, allowing as much as 240 gal. of water to mix with...