|The following anecdote was told to myself, a few months after the curious event, by the three witnesses in the case. They were connections of my own, the father was a clergyman of the Anglican Church; he, his wife and their daughter, a girl of... Read more of The Girl In Pink at Scary Stories.ca|| Informational|
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1. The white light of the sun is compounded of an almost innumerable number of color elements, as shown by the phenomena of the rainbow or by experimenting with the prism. When a ray of sunshine passes through a glass prism it is decomposed or separated, and if the prismatic colors are received upon a white screen you will find on the spectrum among the colors generated a pure blue, a pure red and a pure yellow. These are the primary colors, and it is necessary when thinking color to bear these prismatic colors in mind as standards.
2. Color is an internal sensation originating in the excitation of the optic nerve by a wave action which we call light.
3. The theory of light, the wave theory, is based upon the assumption that throughout all space there is an infinitely thin medium called ether. Scientists differ as to what this may be, but its movements constitute light, a reflection from a luminous body.
4. Everything which we see is visible because it either emits light, like a flame, or reflects light.
5. A piece of black cloth upon a white plate reflects but a small proportion of the light. The plate reflects a large proportion. A piece of black velvet reflects less light than black cloth and gives the effect of absolute blackness, or an empty and dark space.
6. In practical demonstrations the study of color will be confusing unless it is understood at the outstart that pure prismatic colors can seldom be found in manufactured pigments, hence any demonstration of the theory of color composition is usually unsatisfactory.
7. The theory which brings out of a ray of sunshine the disunited prismatic colors carries with it the deduction that before separation these colors constitute white light; but it must be manifest to even the superficial reader that such colors are mere spectrum colors—vision colors—and any amalgamation of material or pigment colors, so far from producing white, produces almost black.
8. The theory that red and yellow make orange, and that a red and blue make violet, is correct; but if one attempts to demonstrate the theory with pigments, one is confronted not only by the lack of standard manufactured colors but by impurities, adulterations and chemical reaction in the pigments. The adulteration may not be perceptible in one primary color, but it is manifest when that color is brought into action with another primary, for it is seldom that a pure secondary results.
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