Word: humason
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Dates: during 1930-1939
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...total universe -is a vast sphere approximately 1,000,000,000 light-years across (one light-year equals about six trillion miles). Human knowledge of the outermost fringes of this sphere is mostly due to the work of Astronomers Edwin Powell Hubble and Milton La Salle Humason, whose long looks into space are made possible by Mt. Wilson Observatory's 100-inch telescope. Even with this giant instrument, catching the spectra of far-off island universes has required all-night exposures for several nights...
Last week it was disclosed that Dr. Humason has put to work the world's fastest lens, for further survey of the abysses beyond the Milky Way. Designed by Dr. Wilbur Bramley Rayton, technical chief of Bausch & Lomb Optical Co., the lens has a speed of f:0.59, six and one-half times faster than commonly used in minicameras (f:1.5). The necessary time for spectographing remote nebulae has been cut in half, in one instance from 120 hours to 60 hours. "It is now possible," said Dr. Humason, "to observe faint objects which have heretofore seemed hopeless...
...almost a household word. But the telescopic observations of a universe which seems to be blowing up like the fragments of an explosive shell have come mainly from Mount Wilson Observatory's brilliant Astronomer Edwin Powell Hubble. Beginning in 1928, Hubble and his coworker, Milton LaSalle Humason, showed that the light from the most distant nebulae (clouds of stars) which he could photograph in Mount Wilson's giant telescope was shifted far toward the red end of the spectrum. Such a redshift is observed in the light of a star known to be retreating from Earth...
...struck a photographic plate under Mt. Wilson's 100-inch telescope, where its record was observed by famed Edwin Powell Hubble. Because of its great distance the star never approached naked-eye visibility, faded rapidly in late February. But Dr. Hubble's coworker, Dr. Milton LaSalle Humason, took spectroscopic and photometric observations which indicated that at the peak of its long-ago death agony the super-nova was 50 times as hot and 10,000,000 times as bright...
...reason for excitement on this score. Following the General Theory of Relativity (1915) Einstein erected a cosmos whose radius turned out to be 32,000,000,000 light years. But Willem de Sitter worked out a universe in which space itself was expanding independently of its matter and Hubble & Humason at Mount Wilson confirmed this expanding universe theory by actual observations. Thus Einstein's universe fell into general disfavor, without at all impairing the General Theory of Relativity. Four years ago Einstein accordingly revised his original universe to conform with these observations...