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Word: spectra (lookup in dictionary) (lookup stats)
Dates: during 1960-1969
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Usage:

Superimposed on a rainbow of colors ranging from short-wave-length violet light at one end to longer-wave-length red at the other, star spectra show a series of characteristic bright and dark vertical lines that indicate the presence of specific chemical elements. In 1868, one such line in a spectrogram of the sun enabled British Astronomer Norman Lockyer to detect the existence of a new element-helium-before it was discovered on the earth...

Author: /time Magazine | Title: Astronomy: The Man on the Mountain | 3/11/1966 | See Source »

...contained no color, only shadings of black and white, and were one-third of an inch long and a thousandth of an inch thick. Under the microscope, however, Sandage and Greenstein were barely able to discern strange patterns and spectral lines that had never before been observed in stellar spectra. Genuinely puzzled, Greenstein began to work out an elaborate hypothesis suggesting that the quasars were extremely dense and hot nearby objects, probably the remnants of supernovas containing highly excited or unfamiliar elements...

Author: /time Magazine | Title: Astronomy: The Man on the Mountain | 3/11/1966 | See Source »

...while, astronomers tried to explain how such ordinary-looking stars could produce large quantities of radio waves. But they made no progress, and two years ago Dr. Schmidt made things worse. With Dr. Jesse Greenstein, Schmidt photographed the spectra of four of the radio-loud "stars" with the 200-in. Palomar telescope and found evidence of ultraviolet light that had increased in wave length until it became visible light...

Author: /time Magazine | Title: Astronomy: The Questions of Quasars | 1/8/1965 | See Source »

...years of losses on its computers, RCA has twice this month raised its bid to grab more of the world wide computer market now dominated by International Business Machines. In its most costly move since entering the field in 1958, RCA brought out a new line of computers (called Spectra 70s) with integrated circuits that it claims are faster and cheaper to make than the transistor circuits that run most computers. Next, it signed a ten-year agree ment with West Germany's giant electronics and computer company, Siemens & Halske, to swap patent licenses and technical data...

Author: /time Magazine | Title: Corporations: An Attraction of Opposites | 12/25/1964 | See Source »

Analysis of the spectra showed that above its cloud deck, the Venusian atmosphere has about 9.8 milligrams of water vapor per square centimeter. This is not much, but it is not far from the amount that is believed to exist above a comparable level in the earth's atmosphere...

Author: /time Magazine | Title: Astronomy: Venus Revisited | 4/17/1964 | See Source »

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