Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 472
as did the flask in the precedingexperiment. If the observer is standing at E with his backto the sun, the light which comes from the drops so as tomake an angle of 42° (Fig. 44(3) with the line drawn fromthe observer to the sun nuist be red lio-ht; while the lischtwliich comes from drops which are… … Artificial rainbow 412 COLOR PHENOMENA
Physics
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