Word: oxygenated
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Dates: during 1970-1979
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...isotopes, or forms, of carbon. They found that the amount of carbon 12, the isotope most utilized in biological processes, was high in relation to carbon 13. This indicates that the hydrocarbons were produced by photosynthesis, the process by which plants convert carbon dioxide into organic compounds and oxygen. Ponnamperuma's find shows that life was present on earth 3.8 billion years ago, when the planet was only 800 million years old. The oldest previously known terrestrial life dated back 3.4 billion years...
...swimmer will start to feel the drop in oxygen at about 3000 feet above sea level. The air in Mexico City, located about 7000 feet above sea level, caused several swimmers to hyperventilate and "due to the altitude, no one in the meet from the U.S. team swam their best times," Stephie Walsh, coach of the Harvard women's swim team and manager of the U.S. team at the Games, said...
...President Truman said if you can't stand the heat, get out of the kitchen. All politics is kitchens, and Harvard is like a breath of pure oxygen," he says...
...soon as the tail cone ripped away, the airliner lost cabin pressure rapidly. Oxygen masks popped down from overhead racks immediately, and the pilot nosed the craft down to an altitude where decompression would not injure the passengers...
...Diana Nyad came ashore last week in Jupiter, Fla., the first person ever to swim from the Bahamas to the U.S. "I feel like the F train in New York just ran over me, but emotionally I'm exhilarated," exulted Nyad between sips of champagne and whiffs of oxygen. The marathoner attempted the feat three weeks ago, but gave up after being stung by a Portuguese manofwar; this time she sprayed herself with latex, "prayed to the Portuguese man-of-war god," and proceeded to finish the 89-mile swim in 27 hrs. and 38 min. Now she will...