Word: germ
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Developed for the Army Chemical Corps, diffusion board resembles ordinary wood-pulp fiberboard, ⅝ in. thick. Impregnated with special chemicals (the kinds are still classified), it acts much like an ordinary Army gas mask, filters out gases and germ-carrying particles as well as radioactive dust, lets oxygen and carbon dioxide breathe through. Against direct radiation itself, the porous diffusion board gives no protection. Thick lead or concrete shields must be used to keep out death-dealing gamma rays. Moreover, lining the walls of an average home with the board would not eliminate dust, which could sift in over windowsills...
AMERIGO AND THE NEW WORLD (323 pp.)-Germán Arciniegas-Knopf...
Everyone knows that Christopher Columbus discovered America, but did he really? A Colombian diplomat and historian, Germán Arciniegas does not ask the question in his Amerigo and the New World, but the reader is bound to. Columbus boldly sailed through the curtain of fear and superstition that had kept men from trying the dread Atlantic crossing. But he died believing that he had reached Asia, never accepted the fact that the New World was really another continental land mass. The first man to name it the New World was the Florentine navigator and businessman Amerigo Vespucci; at least...
...professor at the Medical School who won a Nobel Prize for his work in isolating the polio germ has now successfully reproduced the measles virus in the laboratory...
...buffer state is the absence of independence," said one paper. Added another: "To imagine Yugoslavia as a passive country which has ceased to appraise events independently means to believe that she has repudiated the conditions of her existence." In such brusque rejections of the notion of "neutrality" lay the germ of a Western answer to the Kremlin's new line...