Church, A. H. (Arthur Herbert), 1834-1915, Vincent Brooks, Day & Son, lithographer, Cassell & Company, publisher · London ; Paris ; New York ; Melbourne : Cassell and Company, Limited · leaf 41
fwhiteness, must present a total luminosity much lessthan that of a white disc. Thus, six coloured sectorscannot offer more light to the eye than a small fractionof that furnished by a white disc of corresponding size.We must be satisfied with a neutral grey, a mixture ofwhite and black, for even a… … Fig. 8. Chap. II.] RECOMFOSITION OF WHITE LIGHT. 23 sultant white must not surprise us. Indeed, the degreeof absorption (of parts of the white light) which producescolour in pigments is so great that, with the three pig-ments named above, it amounts to a commixture of 71 hparts of black with 28|…
Colors · Color · Kleuren · Kleurwaarneming · Kleurtheorie
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