This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...the action of the strings in a piano or violin, would be found to vibrate regularly with a quickness depending upon the degree of tension. The vibrations of musical strings or wires will be considered at greater length farther on. 217. Measurement of the Length of a Sound Wave.--Since a musical sound consists of a ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...the action of the strings in a piano or violin, would be found to vibrate regularly with a quickness depending upon the degree of tension. The vibrations of musical strings or wires will be considered at greater length farther on. 217. Measurement of the Length of a Sound Wave.--Since a musical sound consists of a series of waves following each other at regular intervals of time, we may call the distance between similar portions of two consecutive waves the wave length of the sound. We may take the distance from the point of greatest condensation in one wave to that of the point of greatest condensation in the next wave, or we may measure from rarefaction to rarefaction. The distance will be the same in both cases. Suppose any kind of tuning fork, for instance a common "A" fork of 440 complete1 vibrations per second, to be set vibrating, and to remain vibrating for one second. In that time we may suppose that, with the ordinary temperature, the sound will have travelled about 340 m. Then a sphere of 340 m. radius will have been filled with alternate shells, or layers, of condensed and rarefied air. Each complete vibration of the fork produced two layers, or one complete sound wave. So the length of the sound wave in 34,000 this case is about, or 77.3, cm. 440' Exercise 27 shows a simple and interesting method of measuring a wave length, or known fraction of a wave length, of sound in a tube. The principle of the Exercise can be discussed with the aid of Fig. 155, which represents a glass jar containing a column of air of such length as to reinforce the sound of the tuning fork A. 1 A complete, or double, vibration is a movement in which the vibrating body goes over its whole path twice, once from left to right and once from right to left, that is, ...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Fine. Trade paperback (US). Glued binding. 580 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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New. Trade paperback (US). Glued binding. 580 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
