Word: sunlight
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Dates: during 1930-1939
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...moonless spring night residents of northern states can see a concentration of cosmic radiation as a wedge of zodiacal light at the western horizon. In the autumn the light concentrates at the eastern horizon. One theory of the source of zodiacal light supposes that it is sunlight reflected from small bodies or gas molecules. Astronomer Vesto Melvin Slipher of Lowell Observatory, Flagstaff, has another thought-but he did not elaborate it in his Philadelphia lecture...
...violet. The assumption is that "the strange light originates at some distance above the Earth's surface, in a layer of considerable thickness. The Earth's atmosphere is playing a considerable role in the production of these radiations." The light seems to be a transformation of sunlight (or starlight) rather than a reflection of sunlight. In any case astronomers, astrophysicists and meteorologists have a new concept of the atmosphere's optical properties to develop and evaluate...
...investigators are trying to cure tuberculosis by introducing ultraviolet light to infected body cavities. The artificial sunlight might kill the germs and heal the tissues if it could shine on them. A problem has been how to build a light producer small enough and cool enough to get into the cavities. Last year Drs. John Roberts Caulk & Frank Henry Ewerhardt of Washington University, St. Louis, successfully entered a tuberculous bladder, alleviated it with irradiation. They used a cold quartz generator of ultraviolet light...
...broad band or spectrum like the colors of the rainbow. In this imaginary scheme, a pure note such as the sound of a tuning-fork will fall neatly into one line on the band; while complex sounds, like the voice, will shatter apart into their several components like sunlight in a prism. With this picture in mind, and knowing that in the field of optics the most evanescent tints can be reduced to the familiar primary colors, the recording engineers are in a sense no more awed before the mixed web of orchestral tone than before the simple sound...
...step we take leads upward toward the light. . . . The people have summoned a leader whose face is lifted toward the skies. We shall follow that leadership until we again stand in the glorious sunlight of prosperity and happiness...