Tyndall, John, 1820-1893 · New York : Appleton · leaf 369
rred to, both as regards sound andlight, is called Interference. 360 SOUND. 3. Experimental Illustrations. Sir John Herschel was the first to propose to divide astream of sound into two branches, of different lengths,causing the branches afterward to reunite, and interferewith each other. This idea… … n > tube of divides into two branches at,/7, the one branchbeing carried round n, and the other round m. The twobranches are caused to reunite at g, and to end in a com-mon canal, g p. The portion b n of the tube which slidesover a b can be drawn out as shown in the figure, andthus the…
Sound
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