Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 306
r of primary colors primary colors, can only be answered with reference to considered; x . . the sense in which it is asked. If it be meant to applyto the number of tints distinguishable in the spectrum,this will be a matter of individual judgment to differenteyes. Newton distinguished seven, Sir… … every possible shade of color, from the deep red to faint odors of the . -i -, t T£» -, . -. ., ,. solar spectrum violet or lavender grey. It we understand the question resolvcd int0as applying to the number of definite points at each of eight classes.which a wave of different length occurs, their…
Mechanics · Acoustics · Optics
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