The Encyclopedia Americana, Volume 7Grolier, 1998 - Encyclopedias and dictionaries |
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Page 305
Color is usually defined in one of two ways , either subjectively , as an aspect of visual appearance , or objectively , as the property of light by which we are made aware of objects or light sources . Formerly the term " color " was ...
Color is usually defined in one of two ways , either subjectively , as an aspect of visual appearance , or objectively , as the property of light by which we are made aware of objects or light sources . Formerly the term " color " was ...
Page 306
The spectral energy distribution of light from incandescent lamps follows a blackbody distri- bution very closely . ... 2820-3000 ° K. The color of average noon sun- light at ground level in Washington , D. C. , based on measurements ...
The spectral energy distribution of light from incandescent lamps follows a blackbody distri- bution very closely . ... 2820-3000 ° K. The color of average noon sun- light at ground level in Washington , D. C. , based on measurements ...
Page 312
312 An object that selectively absorbs relatively more light at some wavelengths than others generally produces a chromatic color . If most of the light ( 90 or 95 % ) from daylight or almost any common light source is absorbed at all ...
312 An object that selectively absorbs relatively more light at some wavelengths than others generally produces a chromatic color . If most of the light ( 90 or 95 % ) from daylight or almost any common light source is absorbed at all ...
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