Word: angstroms
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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...
...PHYSICAL COLLOQUIUM. "Angstrom: on the Absorption of Gases." Mr. D. L. Webster. Jefferson Physical Laboratory, Room...
...PHYSICAL COLLOQUIUM. "Angstrom: on the Absorption of Gases." Mr. D. L. Webster. Jefferson Physical Laboratory, Room...
Physical Colloquium. Knut Angstrom's Electric Compensating Pyrheliometer. Mr. H. N. Davis. Jefferson Physical Laboratory...