Word: ultraviolet
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...traced a consistent parallel which would show that sunspots cause war, prosperity, disease epidemics or drought. Astronomers agree, however, that at times of sunspot intensity more ultraviolet radiation comes from the sun to earth, the air averages about one degree cooler, slightly more rain falls and there are disturbances of the terrestrial magnetic field. At such times ordinary radio reception is more troubled by static. But a U. S. Bureau of Standards scientist has found evidence that ultra-short-wave reception is better in the daytime when sunspots are rampant (TIME...
...Ultraviolet radiation has a propensity for knocking electrons off molecules and thus creating ions-electrified particles. In the tenuous upper atmosphere of earth, far higher than any balloon has ascended, there are several layers of such ions which increase in density during sunspot peaks. This is to be expected since sunspots are accompanied by heavier ultra violet bombardment. These electrified layers serve to deflect most radio waves, curve them around the bulge of earth. In radio's pioneer days, when only one layer was known, it was called the Kennelly-Heaviside layer after its discoverers. Now the electrified region...
Cook's professional astronomer, Dr. Orren Mohler, 28 (University of Michigan), in connection with a photoelectric Geiger-Miiller counter which records the ultraviolet radiation of distant stars by a series of staccato clicks...
...Famed Nova Herculis of 1934 became one of the twelve brightest stars, but it started from the 14th magnitude. If Gamma becomes a nova, starting from the first or second magnitude, it will be brilliantly visible in broad daylight. And imaginative persons have suggested that the outpouring of injurious ultraviolet radiation may be so strong that human beings would have to carry umbrellas coated with lead before venturing under the glare of "Nova Cassiopeiae." Other highlights of the astronomers' convention: Nos- 60, 61, 62. In the sun hydrogen, helium, calcium, sodium, carbon, nitrogen, and many another terrestrial element have...
...only gases known to occur in interstellar space were sodium and calcium. Ordinarily these metallic elements must be strongly heated before they vaporize, but in the utter cold of space, close to absolute zero, they exist in exiguous quantities as free molecules and therefore as gases. In the ultraviolet range of the spectrum of the stars Chi 2 Orionis and Chi Aurigae, Astronomers Walter S. Adams and Theodore Dunham Jr. of Mt. Wilson Observatory found four lines (one of them almost blotted out by the interference of Earth's atmosphere) which they identified as originating from the element titanium...