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Word: spectrum (lookup in dictionary) (lookup stats)
Dates: during 1930-1939
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Usage:

TIME, Oct. 23, p. 14, ". . . [John Nance Garner's] Neon-blue eyes. . . ." If you will check the spectrum of Neon you will find it emits mostly orange and red wavelengths of light. Mercury or argon are the usual sources of blue light used in signs...

Author: /time Magazine | Title: Letters, Nov. 27, 1939 | 11/27/1939 | See Source »

...Edwards of Harvard and Physicist Seibert Quimby Duntley of Massachusetts Institute of Technology, these theories were only skin-deep. Instead of the naked eye they used a spectrophotometer, a photoelectric device which analyzes skin color by measuring its capacity to reflect light at each separate wave length of the spectrum. Painstakingly they analyzed the entire skin surface of three white men, three white women, a Japanese, a Hindu, a Negro and a mulatto. Last week in one of the most thorough analyses of skin color ever published, Drs. Edwards and Duntley announced: 1) two pigments hitherto unknown in the skin...

Author: /time Magazine | Title: Science: Skin Colors | 8/28/1939 | See Source »

...Using the terms "All-Wave," "World-Wave," "World-Wide-Wave," to describe sets "not constructed to receive . . . with reasonable or adequate consistency, the entire spectrum of radio frequencies in recognized use in the art. ..." Lawful designation: "Limited All-Wave," etc., with the exact wave bands or frequencies clearly stated...

Author: /time Magazine | Title: Radio: Fair Trade | 8/7/1939 | See Source »

Light from the most distant of the external galaxies, when broken up into its component colors by a prism or grating, is shifted toward the red end of the spectrum, indicating that the galaxies are retreating in all directions.* For them, the apparent velocity is roughly proportional to the distance. But among the nearest galaxies, this ratio does not hold. The Milky Way appears to be approaching some, receding from others. To isolate this motion, Dr. Hubble had to allow for and discount the sun's own movement within the Milky Way-since he was perforce using the solar...

Author: /time Magazine | Title: Science: Many Motions | 5/29/1939 | See Source »

...Many astronomers, including Dr. Hubble, suspect nowadays that the "Expanding Universe"' may be an illusion instead of a reality. For relatively nearby objects, however, the spectrum shift is taken as a valid measure of velocity...

Author: /time Magazine | Title: Science: Many Motions | 5/29/1939 | See Source »

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