Word: dusts
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Dates: during 1950-1959
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...Astronomer George H. Herbig of Lick Observatory took a photograph of a small area in the Orion nebula, which is 1,600 light years (9,600 trillion miles) away from the earth. It showed three faint stars embedded in a cloud of dust and gas. At last week's Dublin meeting of the International Astronomical Union, Dr. Herbig displayed a recent picture of the same region. The picture showed five stars, two of which may be newborn. The light from the new stars, of course, took 1,600 years to reach the earth, so the stars were actually born...
Astronomers believe that stars are condensations of the dust and gas that drift through space, so they watch dark or bright nebulas with special eagerness. Some of them contain "T Tauri variables":*faint stars that wax and wane irregularly. They light up the dust near them, which makes them look fuzzy, and they are so numerous in certain dusty regions that astronomers have long suspected that they are formed from the dust...
...miles away from the actual explosion could expect a deadly fallout of wind-borne radioactive particles (TIME, Feb. 28). Last week in Madison, Wis., the U.S. Forest Products Laboratory described a new building material called "diffusion board," that can protect against direct contact with radioactive dust...
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...
Blow Off or Dust Off-Cross the quarter-mile mark first...