Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 277
the expla-nation of § 7, let J/i\rbe awave front proceeding froma source 0. Assume anypoint Or, in front of thewave, and draw the straightline Or 0. Take the dis-tance A B equal to half thelength \, of the longest,and A B equal to half thelength K, of the shortest o VI wave capable of affecting the… … 2 & Even numberedportions of mainwave opposed tothe odd portions. Consequence ofstopping theeven portions; Effect of longestwaves mostincreased at 0,.: Effect of shortestwaves mostincreased at 0 • OrD, &c, describe arcscutting the wave front inV, £, c, d, &c.; then will theportions A 5,…
Mechanics · Acoustics · Optics
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