Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 176
tter sense inphysics. CHAPTER XIII. TRANSMISSION OF SOUND.1. A Material Medium Necessary for Transmission of SoundExperiment 1. (^ Place on the plate of an air pump athick tuft of cotton batting, and upon itplace an alarm clock or a bell rung byclock-work or by an electric current(Fig. 138). Cover… … EJ Fig. 138. as it is possible to make it, let the air gradually into thereceiver. 1. What change now takes place ? 2. What therefore seems necessary to transmit the sound to the ear?2. Sound Transmitted by Solids. Experiment 2. Repeat the last experiment, removing the batting andplacing the…
Physics
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