Word: sunlights
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Dates: during 1960-1969
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...moon-where power is in short supply. Dr. Thirring figures that after traveling from the moon, even the best-focused laser beam would cover a circle on the earth two miles in diameter. Even the light of a 1,000,000-kilowatt moon-based laser would increase the natural sunlight on this large area by only 10% . To do appreciable damage to one earthly city would call for a lunar powerhouse many times larger than any that has ever been built on earth...
...Medicine in Houston, the most noticeable degenerative changes in skin tissues were found to be related not to age but to the areas of greatest exposure to the elements. "The visible cutaneous changes usually interpreted as aging," says the report, "are apparently due largely, if not entirely, to sunlight...
Warns the American Medical Association committee on cosmetics: "There is undeniable evidence that the effects of the sun are cumulative and at some point irreversible. The evidence is clear that chronic exposure to sunlight can be one of the major factors in the production of precancerous and cancerous conditions of the skin...
...knowledge is interesting; but to Mrs. Carlson, it means little that two Harvard Medical School researchers studied porphyria patients to find out whether a major change in the porphyrin content of their skin takes place before or after exposure to sunlight. Dr. J. W. Burnett and Dr. M. A. Pathak examined two victims and three healthy subjects, both after long confinement indoors and after exposure to the sun. In the people with porphyria, output of porphyrin compounds rose sharply after exposure to the light; the others showed no change. Sunlight, the doctors concluded, increases the concentration of porphyrin...
...blood and skin. They suspect that it also increases the production of porphyrin. This is more than medicine has known before about the elusive disease, but it is still far from suggesting a cure. For Mrs. Carlson and her fellow sufferers, the only prescription remains to avoid sunlight like the plague...