A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 121
ass through. The rays of themeridian sun can not pass through apair of crossed tourmalines. The cause of this is obvious. If wetake a thin lath or strip of pasteboard,c d, Fig. 83, and hold it before a cageor grate, a 6, it will readily slip throughwhen its plane coincides with the bars; How can we… … Fig. S3. IW POLARIZED LIGHT. 109 but if we turn it a quarter way round, as at ef, then, ofcourse, it can not pass the bars. Now the plate oftourmaline, Fig. 82, c d, polarizes the light, a b, whichfalls upon it; that is, the waves that pass through itare all vibrating in one plane. They pass,…
Chemistry · Physics
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