Recreations in astronomy : with directions for practical experiments and telescopic work (1879)
Warren, Henry White, 1831-1912 · New York : Harper & Brothers · leaf 40
ndulations in ether. Reference has beenmade to the minuteness of these undulations. Theirvelocity is equally wonderful. Put a prism of g]into a ray of light coming into a dark room, and it is FORCES OF THE SUNBEAM. 25 instantly turned out of its course, some parts more andsome less, according to… … V, 716 to 765I, 667 to 699B, 663 to 65SG, 562 to 610Y, 510 to 5490, 478 to 510R, 396 to 470 Fig. 6.—White Light resolved into Colors. But the different divisions we call colors are not colorsin themselves at all, but simply a different number ofvibrations. Color is all in the eye. Violet has in…
Astronomy
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