Six lectures on light : delivered in America in 1872-1878 (1886)
Tyndall, John, 1820-1893 · New York : D. Appleton · leaf 172
42 and 43 represent the figiures obtained with twopieces of glass thus prepared. Two rectangular pieces … 142 ON LIGHT. lECT. of unannealed glass, crossed and placed between thepolarizer and analyzer, exhibit the beautiful iris fringesrepresented in fig. 44. § 6. Circular Polarization. But we have to follow the ether still further into itshiding-places. Suspended before you is a pendulum,which, when…
Light
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