. The principles of physics. (always an even number), vibrating parts. Experiment 6.—Remove the brass plate (Fig. 191) from its support, and fasten the bell B (Fig. 194) on the support. Bow the edge of the bell at some point, and hold the open tube C in a horizontal position with the center of one of its openings near that point of the edge of the bell which is opposite the point bowed. The tube loudly reenforces the sound of the bell. Move the tube around the edge of the bell and find its nodes. Thrust the plunger D into the open end E of the tube, and find what part of the length of an open
. The principles of physics. (always an even number), vibrating parts. Experiment 6.—Remove the brass plate (Fig. 191) from its support, and fasten the bell B (Fig. 194) on the support. Bow the edge of the bell at some point, and hold the open tube C in a horizontal position with the center of one of its openings near that point of the edge of the bell which is opposite the point bowed. The tube loudly reenforces the sound of the bell. Move the tube around the edge of the bell and find its nodes. Thrust the plunger D into the open end E of the tube, and find what part of the length of an open tube a closed tube should be to reenforce a sound of a given pitch. 195. Vocal organs. — It is diiBcult to say which is more tobe admired, the wonderful capability of the human voice orthe extreme simplicity of the means by which it is organ of the voice is a reed instrument situated at thetop of the windpipe, or trachea. A pair of elastic bands, aa(Fig. 195), called the vocal chords, is stretched across the. Fig. 194.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysics, bookyear1895
