A School Compendium of Natural And Experimental Philosophy Embracing the Eleme
A School Compendium of Natural And Experimental Philosophy Embracing the Eleme
Richard G Parker
The book A School Compendium of Natural And Experimental Philosophy Embracing the Eleme was written by author Richard G Parker Here you can read free online of A School Compendium of Natural And Experimental Philosophy Embracing the Eleme book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A School Compendium of Natural And Experimental Philosophy Embracing the Eleme a good or bad book?
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Nd the two sounds may produce silence. 655. A simple illustration of this fact may be made with a tuning-fork. If this instrument be put into vibration and held up tc the ear and rapidly turned, the sound, instead of being continuous, will appear to be pulsative or interrupted ; but, if slowly caused to revolve at a distance from the ear, a position of the forks will be found at which the sound will be inaudible. 656. A similar experiment may be made with the tuning-fork iield over a cylindrica...l glass vessel. Another glass vessel of similai kind being placed with its mouth at right angles to the first, no sound will be heard ; but, if either cylinder be removed, the sound will be distinctly audible in the other. The silence produced in this way is due to the interference of the undulations. This seeming paradox, when thus explained, like the paradox mentioned under the heads of Hydrostatics and Pneumatics, and another to be mentioned under the head of Optics, will be found to be perfectly consistent with the laws of sound.
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