Word: ultraviolet
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...Spacelab will also carry a ten-ton telescope that will allow scientists to view space 100 times more accurately than any earth telescope, and look for infrared and ultraviolet ends of the visible spectrum obscured by the atmosphere 3 earth...
DIED. John Howard Griffin, 60, novelist who in 1959 used chemicals and ultraviolet light to change the pigment of his skin temporarily from white to black, then walked, bused and hitchhiked through the South and wrote about his experiences in Black Like Me; of complications arising from diabetes; in Fort Worth. His book, published in 1961, stirred consciences throughout the U.S., sold more than 1 million copies and was made into a movie...
...gridded ceiling that extends, free of supports, over the whole area. The galleries are part of the new southern wing, designed by Kevin Roche/John Dinkeloo, and the huge ceiling provides something almost unique in recent museum constructionnatural light. Special glass on the roof above filters out the ultraviolet light that can damage pigment, while stainless-steel baffles scatter the sun's beams, which are further diffused by pebble-grained glass panels set in the ceiling's grid. The arrangement imparts a subtle variety to many a familiar painting as the sky changes. The impressionists, in particular...
...typical stand-up booth is about three feet square and lined with reflectors and Westinghouse lamps of varying lengths that look like fluorescent lights but emit an average total of 560 watts of long-and medium-frequency ultraviolet rays. Unlike the infra-red sun lamps used at home, these lights give off very little heat. Doctors have long used them to treat serious skin conditions; the franchisers have merely put them in tanning booths. One minute under the lamps is said to equal an hour in the summer sun; sometimes ten visits are needed before the "sun worshiper" starts sporting...
Except for the obvious risk of sunburn from overexposure, medical specialists see no immediate danger from such tanning. But, cautions Madhukar Pathak, research professor of dermatology at Harvard Medical School, "we don't know the long-term effects of exposure to ultraviolet lamps." He warns that prolonged use of the lamps found in most clinics may cause skin cancer in fair-complexioned people. Although this is usually treatable, the aging and wrinkling of the skin that also come from too much exposure are irreversible. Those who do not use goggles risk developing cataracts. As of next...