Tyndall, John, 1820-1893 · New York : Appleton · leaf 41
tion of sound may be illustrated by anotherhomely but useful illustration. I have here five youngassistants, a, b, c, d, and e, Fig. 2, placed in a row, onebehind the other, each boys hands resting against theback of the boy in front of him. e is now foremost, anda finishes the row behind. I… … is thrown forward. Had he been standing on the edge ofa precipice, he would have fallen over; had he stood incontact with a window, he would have broken the glass;had he been close to a drum-head, he would have shakenthe drum. We could thus transmit a push through a rowof a hundred boys, each…
Sound
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