Word: oxygenation
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There were many moments before and during the operation when it looked as though Clark would not see his wife again. He was in the final stages of cardiomyopathy, a progressive deterioration of the heart muscle. Clark's skin appeared blue from lack of oxygen, fluid was collecting in his vital organs, and his ravaged heart could pump only one liter of blood a minute, about one-seventh the normal rate. When Clark's heart started fluttering abnormally a day before the implantation was scheduled, DeVries decided the operation could not wait. His patient, he said, "probably would...
Brown and Sprague acknowledge that their harvests are bigger than the average tongman's. But the fact is that none of the watermen are getting huge hauls these days. Nitrogen, carried into the bay by runoff from neighboring farm lands, has lowered the Chesapeake's oxygen level. The primary victims are the oysters, whose numbers have been declining in recent years. The secondary victims are watermen like Brown, whose family has been working the water for three generations, and Sprague, a Californian who was sent to Maryland as a serviceman and liked it so well that he stayed...
...seepage was traced to a ¾-in.-long crack in the engine's manifold, where hydrogen and oxygen come together under extremely high temperatures and pressures. That crack was the result of an inadequately hardened weld ordered up to repair some damage sustained during manufacture. But when the No. 1 engine was removed, its replacement also showed signs of leakage. This time oxygen was pouring out of a heat exchanger, a situation that might have triggered an explosion and fire...
Using special sensors that can "sniff" the chemical signature of a gas, technicians traced the leak to a ¾-in.-long crack in the hot-gas manifold, where hydrogen and oxygen are gathered under high pressure (4,400 Ibs. per sq. in.) before combustion. Undiscovered, the leak might have caused an explosion. This week technicians hope to install a new engine, trucked from the National Space Technology Laboratories in Bay St. Louis, Miss...
...moral. Despite quakes and eruptions, the earth is agonizingly incremental, and McPhee must use all his skills to extract its story. On the reluctant process of diamond formation: "They want to be graphite, and with a relatively modest boost of heat graphite is what they would become, if atmospheric oxygen did not incinerate them first. They are, in this sense, unstable-these finger-flashing symbols of the eternity of vows, yearning to become fresh pencil lead." Noting that the last Ice Age stopped around Ebbets Field, vanished home of the Brooklyn Dodgers, he writes: "When a long-ball hitter...