This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ...is a band of colour that may be produced by placing a grating (Fig. 93) or a prism, in a beam of sunlight The radiations from the sun consist of vibrations of the optical ether. The spectrum comprises the vibrations between 760 and 380 millimicrons long. A millimicron is the millionth part of a millimeter. With the ... Read More
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ...is a band of colour that may be produced by placing a grating (Fig. 93) or a prism, in a beam of sunlight The radiations from the sun consist of vibrations of the optical ether. The spectrum comprises the vibrations between 760 and 380 millimicrons long. A millimicron is the millionth part of a millimeter. With the spectrum we can perform more accurate experiments in mixing colours than with the colour disks. We must note the following results. White can be produced by using any hue of the spectrum and one other hue in the appropriate intensities. Two hues that can be thus used are called "complementary colours." plementary colours are: red 656--orange 608--yellow 567--greenish yellow 564--Fig. 98.--Spectrum from a Orating. Some of the com greenish blue 492 blue 490 purplish blue 465 purple 433 The figures indicate millimicrons. Fig. 86 is so constructed that complementary colours lie at the opposite ends of lines drawn through W and at such distances from Was indicate the amounts of each hue required for the mixture to make white with its complementary When colours not complementary are used, the results depend on the proportions. Red and yellowish green give all the variations through reddish orange, orange-red, orange, orange-yellow, yellowish orange, yellow, and greenish yellow. These colours lie on the straight portion at the left of the curve in Fig. 86. Red and purple give all the intermediate purples; these colours lie along the straight line at the bottom of the same curve. Red and green give all the variations through orange and yellow, but they are all whitish; they lie along a straight line drawn from red to green, which passes nearer to white than the line from red to yellowish green. To find what are the results of combining any two ... Read Less
Add this copy of Thinking, Feeling, Doing: An Introduction To Mental to cart. $47.22, new condition, Sold by Booksplease rated 4.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2006 by Kessinger Publishing.
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