Modern chromatics, with applications to art and industry (1879)
Rood, Ogden N. (Ogden Nicholas), 1831-1902 · New York, D. Appleton and Company · leaf 121
MODEEN CHROMATICS. 112 furnishes a prismatic spectrum, and owing to the disposition of the slits, the two spectra will overlap as shown in Fig. "42, which represents the red space of one spectrum falling … Fig. 41.— Two Slits arranged for mixing Two Spectra. on the green space of its companion. By moving the slits fur- ther apart or nearer together, all the different kinds of light which the spectrum contains may thus be mingled. Using a more refined apparatus, Helmholtz proved that the union of the…
Color · Painting · Color in art
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