Word: ultraviolet
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stopped producing the vaccine, has not shipped a drop since. Last week Parke, Davis gave the reason: it is experimenting with ultraviolet rays in processing the vaccine. This could give greater assurance of safety. Also, ultraviolet might make it possible to produce a more effective vaccine, using less formaldehyde-which sometimes kills the virus so thoroughly as to make the vaccine ineffective...
...indeed dates from either just before or just after 700 A.D. Determining the age of the musical notations was a knottier task, since they could have been scratched in almost any time up to the 12th century, when that kind of notation went out of style. Infra-red and ultraviolet photography made the words and music assume about the same intensity, a fact that leads Schrade to believe that "at least the sub stance of the inks is basically the same," hence, that the neumes were written not long after the words...
...burst forth posthumously with a bestseller. Fanny Van de Grift Osbourne Stevenson has been known -if at all-as a sort of two-dimensional adjunct to her great husband Robert Louis Stevenson. Now, all at once, Fanny is three-dimensional. Anthologist-Author Charles Neider, aided by infra-red and ultraviolet light, but hindered by often almost illegible handwriting, has published Fanny's diary, which he discovered gathering dust in a Monterey, Calif, museum...
...will yield a large amount of valuable information. Even on the clearest day, the atmosphere is as opaque to many kinds of radiation as if it were an ocean of ink. But the satellite, soaring above the atmosphere, can measure all kinds of radiation, including the sun's ultraviolet and the primary cosmic rays. Its electrical eyes, looking downward, can scan the earth, following masses of cloud as they form and drift. Other instruments can measure the electrified particles that stream...
This week Dr. F. E. Williams and D. A. Cusano of General Electric's Research Laboratory demonstrated the first major step toward licking the problem. On a round screen four inches in diameter they projected in ultraviolet light the image of an ordinary photographic slide. It made a yellowish picture (of three G. E. scientists) that was almost too dim to be seen. Then Cusano fed electric current to terminals on the screen. As the voltage gradually increased, the image brightened until it was clearly visible. No contrast or detail of the original was lost. The strength...