Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
Indigo Violet Extreme violet.. SIO. The cause of the waves of light is supposed to be thevibrations of the particles of a luminous body. In ordinary combustion, one of the sources of light, the atoms ofoxygen in the air are rushing into combination with the atoms (hy-drogen and carbon) of the… … /}11. Figure 40.—Diffraction fringes caused by inter-ference.—A convenient method of showing ditfraction fringes con-.sists of allowing the rays of the sun to fall on the flat side of a razor. The rays, S and T, passing in close proximity to the back and edge 288 OPTICS. of the instrument, will be…
Physics · Astronomy
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