sterious of allof the actions of light. When a ray of light passesby any sharp edge it is scattered or dispersed, and thedetails of this action have been very closely studied.If a razor is held with its fiat side to the sun, the raysthat pass near the edge will be scattered, some beingthrown inward… … If, in the place of a broad razor., very narrow bodyis used, the rays that are deflected inward cross eachother and produce dark lines by interference, andthese durk lines are bordered by colored fringes. Thenumerous fine rays of a feather cause these phe-nomena of diffraction. A Kaleidoscopic…
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