A Dictionary of science, literature, and art [electronic resource]: comprising the history, description, and scientific principles of every branch of human knowledge; with the derivation and definition of all the terms in general use (1844)
Brande, William Thomas, 1788-1866, Cauvin, Joseph · New York : Harper & brothers · leaf 1039
ding from this by the same method as oefore, tofind the value of ,i corresponding to the maximum value ofD, the following equation is Obtained cos. i = y/t («2 — 1). Substituting for the constant n its values in respect of the redand violet rays, the values of i, and consequently of r andD, are… … RAIN-GAUGE. From these values it appears that in the case of the ex-terior bow the deviation is least in respect of the red ray,and greatest in respect of the violet; the prder of the coloursis therefore reversed, the red occupyingthe innermost band,and the violet the outermost, as represented in…
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