Barton, Edwin H. (Edwin Henry), b. 1858 · London, Macmillan and Co., limited · leaf 24
nnel Fand a lighted candle C in a line with it at one end. At theend remote from the funnel introduce into the pipe twowatch-glasses, one containing strong hydrochloric acid andthe other ammonium hydrate, so as to produce dense whitefumes Or, instead of producing fumes in this way, thesmoke from… … Fi<;. 1.—Air Waves. flame is seen to duck at each clap. But. although abundantfumes mav be evolved within the tube at the end next the>urce of sound, no trace of fume is seen to issue at the endnext the candle. Hence we conclude that when sound passes from onent to another it is not the…
Sound
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