Andrews, Ernest John, 1863-, Howland, Howard Newell, 1865- joint author · New York, London, The Macmillan company · leaf 372
§§ 596-598] CHROMATICS 357 in about the same way, the passage of the rays being asindicated in Fig. 238. This second bow is in no wayrelated to the primary how. As a necessary condition for arainbow, the sun, the eye, and thecenter of the bow must lie in thesame straight line. For this rea-son…
Physics
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