Word: fractionating
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Dates: during 1940-1949
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...lifted and a sharp autumn wind whistled past the skyscrapers, quickening the pulse of the city. In the Navy Yard in Brooklyn lay the spanking new carrier Franklin D. Roosevelt, ready for a presidential commissioning. Across Manhattan, in the brackish waters of the Hudson, an impressive fraction of the U.S. fleet rode at anchor, ready for a presidential review. There would be a parade for Harry Truman up Fifth Avenue, past the flags and the glittering shop windows. He would make a speech before hundreds of thousands on an open meadow in Central Park...
Elections are being delayed until November in order to insure a wise choice of candidates; "any group that would be nominated now would be known to only a small fraction of the College," declared Ritchie...
...drama. The acutely recorded small-town characters and atmospheres, and the intense performances of all four principal players, are something more. Especially notable is Geraldine Fitzgerald's portrayal of the harboring sister-the first role in years which has given this actress opportunity to show more than a fraction of her worth...
...excited, unstable and artificially radioactive. They throw off gamma and beta radiation, and finally, in an effort to lose mass, they spout neutrons. If these neutrons are slowed by such substances as graphite, paraffin, heavy water or ordinary water, they will touch off other uranium nuclei. In a tiny fraction of a second the reaction will run through a good-sized sample of uranium, containing trillions of atoms, and the result will be a cataclysmic blast...
...problem in radar is to generate enough power to get a detectable echo from a distant point. Of the total energy sent out in a radar beam scanning the skies, only a tiny fraction hits the target (e.g., a plane), and a much tinier echo gets back to the receiver. Engineers estimate that if the outgoing energy were represented by the sands of a beach, the returning echo would be just one grain of sand...