Brewster, David, Sir, 1781-1868, Bache, A. D. (Alexander Dallas), 1806-1867 · Philadelphia : Lea and Blanchard · leaf 159
eatest change at the most oblique incidence, orthat of 90° ; and that the change gradually diminished to aperpendicular incidence, or 0°, where it was nothing. I foundalso that the greatest effect produced by a single plate of glasswas about 16° 39, at an angle of 80° ; that it was 3° 54 at anangle… … Nthe plane of refraction, will have these planes opened 16° 39 ♦The rule for finding the inclination after a single refraction is as fol-lows:—Find the difference between the angles of incidence and refraction,and take the cosine of this difference. This number will be the cotangentof the…
Optics
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