Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 420
ished surface (usually of speculum metal)finely ruled with paral-lel grooves. 1 ,j,^^Q^ The beautiful colorsexhibited by the pol-ished surface of mother-of-pearl, by the feathersof certain birds, andother striated surfaces,are due to wave inter- iference. This wasdemonstrated in a strik- ing way by… … FIG. 302. 402 ETHEE DYNAMICS. Section XI. DOUBLE REFRACTION AND POLARIZATION OF LIGHT. 363. Double refraction. — We have hitherto assumed that aray of light incident upon a transparent body is refractedaccording to the law of sines. This is the ease when thetransparent body is isotropic, i.e.…
Physics
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