Word: d20
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...Moore had an idea. (He found out years later that somebody else had had the idea before him, but had not pursued it.) Why not make use of some of the techniques of nuclear physics and inject into the patient a carefully measured dose of heavy water (D20, the oxide of deuterium, the nonradioactive isotope of hydrogen)? When the D20 and the body's ordinary water (H2O) were thoroughly mixed, the dilution of the heavy water would show the body's total water volume. All this was easier said than done; it took 2½ years...
Three short years ago the formula D20 would have been meaningless to chemists because there was no element corresponding to the symbol D. Now every chemist in the land knows that D2O means heavy water, that D is the symbol for the heavy isotope of hydrogen which Dr. Urey identified in the autumn of 1931 (TIME, Dec. 21, 1931) and subsequently named deuterium. Undoubtedly in considering last week's award the Swedish Academy took cognizance of the fact that no discovery in the physical sciences in recent years has stimulated more widespread research than...
...Urey himself. It is being made at Penn State, University of Michigan, University of Oregon, scores of other institutions in the U. S. and abroad. Dr. Urey's first cost of $150 per gram has dropped to $15 (about $75,000 per gallon). Princeton makes pure D20, estimates the cost at only $5 per gram. Ninety-five percent pure heavy water is available commercially at $20 per gram...
GERMAN TUTORING.- A law student two years' resident in Germany will tutor in German A and 1 during the recess and until the mid-winter examinations. Apply at 467 Broadway. d20...
GERMAN TUTORING.-A law student two years' resident in Germany will tutor in German A and 1 during the recess and until the mid-winter examinations. Apply at 467 Broadway. d20...