Word: ultraviolet
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Dates: during 1960-1969
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...ordinary-looking stars could produce large quantities of radio waves. But they made no progress, and two years ago Dr. Schmidt made things worse. With Dr. Jesse Greenstein, Schmidt photographed the spectra of four of the radio-loud "stars" with the 200-in. Palomar telescope and found evidence of ultraviolet light that had increased in wave length until it became visible light...
Actually, snow blindness is not blindness and isn't caused by snow. Correctly called solar photophthalmia, it is sunburn of the sun's ultraviolet rays off the glistening snow or ice. While generally affecting the unprepared skier, snow blindness is not unknown among mountain climbers, the Eskimos, and even polar bears...
Quality sunglasses or dark goggles are the best safeguards against snow blindness for the skier planning any length of time in the sun. Darker or neutral gray lenses with a light transmission averaging 20 per cent will screen the potentially-harmful ultraviolet rays. For safety make, these lenses should be of shatter-resistant safety glass or plastic. Tinted eyewear of ordinary glass offer an additional hazard to the eyes of a skier who falls or grases a tree limb on a downhill...
...cold-sore sufferers; in Paris, a team of Pasteur Institute virologists, led by Dr. Pierre Lépine, has developed a vaccine that shows definite promise. They grew herpes simplex virus in cultures of kidney cells taken from sheep embryos; then the live virus was inactivated by exposure to ultraviolet light. As part of the testing program, the vaccine was injected into 20 patients who suffered from recurrent cold sores. After one year, eleven of the patients have had no recurrence of their herpes simplex eruptions, seven patients have shown marked improvement, and only two have failed to benefit from...
...reasons unknown, drugs of the tetracycline family concentrate more in cancer cells, and stay in them longer, than they do in normal cells. Tetracycline has the further peculiarity of glowing yellow under ultraviolet light. To put these peculiarities to use, doctors generally give suspected cancer patients a dose of tetracycline four times a day for two days, then wait 36 hours for the drug to leave all the body's cells except those that may be cancerous. After that, samples of body fluid drained from the areas involved are centrifuged, spread on filter paper, dried and examined under ultraviolet...