Word: nucleus
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...Joel Stebbins and A. E. Whitford, of the University of Wisconsin, cast an infra-red ray of hope on astronomy's bitterest sorrow : the invisibility of the Milky Way's nucleus. Even with small telescopes, astronomers can study the galaxies, gigantic clouds of stars which float far off in space. At their centers most galaxies have tight star clusters which may contain much of their mass. These nuclei facinate astronomers, for within them, they suspect, are conditions which exist nowhere else in the universe...
...plate showed a dim, ghostly shape (see cut). Drs. Stebbins and Whitford, encouraged, used infra-red light of still longer wave length. They attached a photoelectric cell and an infra-red filter to the Mt. Wilson 60-inch telescope and swept it back & forth across the area where the nucleus ought to be. Their calculations showed a strong elliptical bulge. The happy astronomers did not claim that this was the Milky Way's actual nucleus. But they were sure that it must be the dense central region of the galaxy, which no human...
Stealthy Neutrons. Most dangerous of all are the neutrons, which can wander almost at will through most kinds of matter. When they hit an atom's nucleus, they produce a dangerous gamma ray and lose a little of their speed. Eventually they are "captured," but the nucleus which captures them is apt to be unstable. Sooner or later it may disintegrate with another burst of rays, alpha, beta or gamma. Some elements, riddled with neutrons, quiet down in minutes or hours. Others radiate thousands of years...
Cyclotron. For high-powered work, the cyclotron has had a basic flaw: at very high speeds it runs head on into relativity. In a cyclotron, nuclear bullets (such as deuterons-the nucleus of the heavy hydrogen atom) are whirled around in a drum divided across the middle, like a halved round cheese. Each time a bullet crosses the gap between the drum halves, it gets an electrical kick, increasing its speed. Because of the bullet's great speed (it circles the drum in millionths of a second), accurate timing of the kick is all-important. But as the bullet...
...Happy Few," is several cuts above its predecessors. Showing a speaking acquaintance with the Beacon Street-Brattle Street axis, Miss Howe's special target is the Cambridge cocktail crowd, the effete, hyper-esthetical group which knows all there is to know about Sex, Marxism, and God. The nucleus of the groups consists of several current and choice Harvard professors, notably "Puffer" Wiggam, master of Bromfield House, whose monocled eyes can only see the old school tie when it comes to applications to his house; A. R. Boyer, psychologist and professional Westerner; and Harry Keith, selfish and neurotic professor of History...