Word: oxygenation
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Dates: during 1920-1929
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...eighth most frequent element in the world, being preceded quantitatively by oxygen 49.78%, silicon 26.08%, aluminium 7.34%, iron 4.11%, calcium 3.19%, magnesium 2.24%, sodium 2.33%, then potassium 2.28%. All other elements are less than...
...week announced successful experiments anent a new use for helium. Faced with severe diffculties in diving operations to raise the sunken submarine S-51 from 128 feet of water off Block Island (TIME, Oct. 5, 12), experts designed a compression chamber wherein animals were supplied with various mixtures of oxygen to find a combination that did not give them "caisson disease" or "the bends," as divers call the dangerous condition produced when they are brought too swiftly out of high-pressure depths. The basis of this dangerous condition is the formation of bubbles in the blood stream, bubbles of nitrogen...
Helium, which goes out of solution far more swiftly than nitrogen, and is just as inert chemically, promises to serve as an efficient substitute for nitrogen as the 79% inert diluent of oxygen in a diver's breathing atmosphere, and to permit longer work at greater depths...
...tube at 140,000 volts, but not so much as one part of gold in a hundred billion of mercury was afterwards detected. Nitrogen bombarded with helium atoms going 12,000 miles an hour was built up into fluorine atoms, which then disintegrated into atoms of hydrogen and oxygen...
Canned Vitamins. Dietitians believed heretofore that the canning of vitamin-bearing foods destroyed the vitamins? as did open cooking. Dr. Walter H. Eddy of Teachers' College, Manhattan, proved at least for Vitamin C (anti-scurvy), that oxidation makes useless this complex chemical. In ordinary cooking much oxygen reaches the food, in canning very little. Actually canned vegetables are more healthful than cooked fresh ones...