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

Rainbow of Colors. To measure this tiny quantity-less than a millionth of the energy needed to split the nucleus of an atom-the scientists devised an ingenious technique. Light from a 200-watt mercury vapor lamp was focused on a diffraction grating, which, like a prism, broke up the beam into its constituent rainbow of colors, its separate wave lengths of light. By rotating the grating to a carefully calculated angle, the scientists were able to reflect light of a single, specific wave length at a target. Knowing the wave length, they were able to determine precisely the energy...

Author: /time Magazine | Title: Chemistry: Making Things More Exact | 5/27/1966 | See Source »

...optical astronomers turned to one of their most powerful tools: the spectrograph, which separates light into its component wave lengths by passing it through a prism or a series of fine lines etched on a glass plate. The spectrum of colors that results can be photographed and interpreted by scientists to reveal the secrets of the light's source...

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

...prints from the hands of tiny, squirming infants, Dr. Achs and her colleagues found that the policeman's inkpad and fingerprint technique would not do; instead they used a direct photographic method developed by New York's Philips Laboratories. The babies' palms were pressed against a prism so that the print was reflected and magnified, and could be photographed with a Polaroid camera...

Author: /time Magazine | Title: Diagnosis: The Telltale Palm | 1/28/1966 | See Source »

...enigmatic, labored Toynbee, twisting time in the prism...

Author: /time Magazine | Title: Books: The Well-Wrought Churn | 3/26/1965 | See Source »

...oldest museums are among the best. The Science Museum of Philadelphia's Franklin Institute boasts 425 audience-participation devices ranging from a simple prism that refracts light rays to a 350-ton Baldwin locomotive that moves up and down a track. Boston's "science smorgasbord," as Director Henry Bradford Washburn calls it, includes a bucket pendulum that dribbles sand in harmonic patterns, a working cloud chamber, and a reproduction of a ship's bridge equipped with radar, sonar, gyroscopes, steering mechanism and a view of the Charles River...

Author: /time Magazine | Title: Museums: A Touch of Aristotle, A Dash of Barnum | 9/4/1964 | See Source »

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