Word: ray
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Dates: during 1960-1969
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Really, though, the BMFA exhibit is too much of a good and powerful thing. By the time you are facing "Mount Williamstown, from Munzana" (1944); on the last wall of prints, you hardly register the now-familiar enormities around you. You almost pass by untouched, but a piercing ray of sunlight glints off the center middle ground. You look again at the terrifying array of boulders marching out at you. There is a start of recognition...
...10th precinct at that early hour could muster only 45 men. Detroit police regard the dawn hours of Sunday, when the action is heaviest in many slums, as a "light period." The precinct captain rushed containing squads to seal off the neighborhood for 16 square blocks. Police Commissioner Ray Girardin decided, because of his previous success with the method, to instruct his men to avoid using their guns against the looters. That may have been a mistake...
...ray-producing potential of TV sets first came to public attention in May, when the General Electric Co. announced that it had discovered excessive X-ray emissions from some of its large-screen color TV sets. To eliminate any danger, G.E. said that it was replacing an improperly shielded voltage regulator tube in more than 100,000 color TV sets (18-, 20-, 22-and 23-in.) that were sold between Sept. 1, 1966 and May 31, 1967. But 9,000 of the G.E. sets have not yet been located. The U.S. Public Health Service has now urged anyone who owns...
...reduce X-ray emissions of high voltage tubes to safe levels, manufacturers equip the tubes with metallic shields that absorb most of the radiation. But because of a manufacturing error, the shields inside many of the 24,500-volt G.E. tubes were misaligned. As a result, part of the X rays emitted by the anode could leak through the bottom of the tube. The radiation from the tube, according to the Public Health Service, ranged from ten to 100,000 times more than the rate considered safe...
Walker and his colleagues have also turned to analyzing uranium fission and cosmic-ray tracks in meteorites. In addition to fixing the age of such extraterrestrial missiles, says Walker, "tracks in these objects are giving us very accurate information about happenings 4.6 billion years ago, including possibilities of how chemical elements and the planets were formed." To enlarge these studies, balloons are now being lofted to capture cosmic-ray tracks. And when astronauts return with lunar soil one of these days, Walker & Co. will be on hand to help date the moon...