The five senses of man by Julius Bernstein

The five senses of man

byJulius Bernstein

Paperback | February 1, 2012

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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. 1886. Excerpt: ... CHAPTER VIII. Analysis of Notes after the Law of Fourier--Helmholtz's Theory of the Perception of Notes--Formation of Notes by Electro-Magnetic Tuning-Forks. THE observations in the last chapter force the question upon us, whether we are justified in imagining that all periodical sonorous vibrations, which produce a sensation of tone, are formed in such a manner that they may be separated into a fundamental tone and a series of harmonics of different strength. Let us suppose that we have to do with a very complicated form of sound-wave, for example, that represented in the accompanying fig. 87, which may be drawn quite at will without knowing at all what kind of sound will be produced in our ear. The figure only represents one period of vibration from 0 to I; the elevation of the wave is quite symmetrical with the depression. It rises rapidly, and, after reaching its maximum, descends somewhat quickly, then for some distance sinks very slowly, falls rapidly once more, and finally, with a gradual inclination, passes into the depression, which is formed in the reverse direction in exactly the same manner as the elevation. If the wave under consideration is a sound-wave in the air, we may conclude from this form, that the condensation of the air quickly attains its maximum, then decreases first rapidly, then slowly, then again rapidly, and finally gradually; and that the expansion of the air increases first gradually, then quickly, then again gradually, and, finally, rapidly, to pass once more with great rapidity into the condensation of the second period of vibration. We have to enquire whether it be possible, that such a vibration as this can be composed of a fundamental tone, whose vibrations exactly resemble that of a pendulum, as shown in fig. 86, and o...

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Title:The five senses of manFormat:PaperbackDimensions:72 pages, 9.69 × 7.44 × 0.15 inPublished:February 1, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217625207

ISBN - 13:9780217625203

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