Word: angstroms
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Dates: during 1930-1939
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Excluding the sun, there is no star known nearer than three thousand million million million million Angstroms. (One Angstrom = .00000001 centimetre...
Last week plump-cheeked Dr. Zworykin announced that his iconoscope was ready for use as the "eye" of a powerful ultramicroscope. Its field of operation extends on both sides of the visible light spectrum -up to 10,000 angstrom units on the infra-red range, down to 1,000 on the ultra-violet.* This point on the ultraviolet side is 2,000 units lower than in other ultramicroscopes. If organisms never seen by human eye do exist in the filtrable viruses of common colds and infantile paralysis, they might be detected by light of such short wavelength. Light of longer...
This film, already utilized in photographing sporting events at night, was designed primarily for astronomers to photograph very dim stars. Using film treated with neocyanine the solar spectrum has been photographed up to 11,634 angstrom units, far beyond red at 8,000 angstrom units, the longest visible wavelength...
...photographs of the phenomenon were developed, Dr. Mitchell pronounced the expedition's success "unequaled in astronomical annals." Spectroscopic analyses of the incandescent gases which surround the sun showed a new wavelength which scientists had never known before. The visible spectrum ranges from 8,000 to 4,000 angstrom units.* Dr. Mitchell's wavelength was 6,770 angstrom units. The camera recorded what the astronomer's eyes had missed-disturbances in the corona on the east and west edges of the sun, caused probably by violent motions in the inner corona. Evidences of these upheavals were seen shooting...