Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 373
sound ceases, no matter how vigor-ously the sounding body may keep up its vibrations. If,for example, we put a bell run by clockwork under thereceiver of an air pump, and either suspend it by threads,or let it rest on thick wads of cotton or wool, the soundwill grow fainter and fainter as the… … 6 o 6 o Fig. 242. take the medium away the sound ceases to reach our ears.Experience teaches us that sounds are even more readilytransmitted through solids than through gases. If one puts his ear against along wire or a stick oftimber, the scratchingof a pin at the other endmay be readily…
Physics
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