Tyndall, John, 1820-1893 · New York : Appleton · leaf 40
e confounded withthe motion of the particles which at any moment constitutethe pulse. For while the wave moves forward throughconsiderable distances, each particular particle of air makesonly a small excursion to and fro. The process may be rudely represented by the propa-gation of motion through a… … row: the motion thus imparted to the first ball is deliveredup to the second, the motion of the second is delivered upto the third, the motion of the third is imparted to thefourth; each ball, after having given up its motion, re-turning itself to rest. The last ball only of the row fliesaway. In a…
Sound
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