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Libros Libros 1 - 6 de 6 sobre We have here a phenomenon which, above all others, characterises wave-motion. It...
" We have here a phenomenon which, above all others, characterises wave-motion. It was this phenomenon, as manifested in optics, that led to the undulatory theory of light, the most cogent proof of that theory being based upon .the fact that, by adding... "
Evolution of Sound: Part of the Problem of Human Life Here and Hereafter ... - Página 282
por Alexander Wilford Hall - 1878 - 527 páginas
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Sound

John Tyndall - 1867 - 335 páginas
...light, the most cogent proof of that theory being based upon the fact that, by adding light to light, we may produce darkness, just as we can produce silence by adding sound to sound. During the vibration of a tuning-fork the distance between its two prongs is alternately increased...
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The Problem of Human Life: Embracing the "evolution of Sound" and "evolution ...

Alexander Wilford Hall - 1880 - 512 páginas
...theory being based upon the fact that by adding light to light we may produce darkness, just as ne can produce silence by adding sound to sound."—...few moments, that this whole matter, as regards the dbublc siren, is a clear misapprehension on the part of these writers, and that no such effects as...
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"Evolution of Sound" Evolved: A Review of the Article Entitled "The Nature ...

Marcellus John Thompson - 1887 - 190 páginas
...light, the most cogent proof of that theory being based upon the fact that, by adding light to light, we may produce darkness, just as we can produce silence by adding sound to sound. " During the vibration of a tuning-fork the distance between the two prongs is alternately increasing...
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An Unorthodox Conception of Being: A Synthetic Philosophy of Ontology

William Ellsworth Hermance - 1912 - 441 páginas
...sound, the most cogent proof of that theory being based upon the fact that, by adding light to light, we may produce darkness, just as we can produce silence by adding sound to sound. Did not most authors use practically this same language we might call it a lie, for no lie could be...
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The Homœopathic World, Volumen26

1891
...light, the most cogent proof of that theory being based on the fact that, by adding light to light we may produce darkness, just as we can produce silence by adding sound to sound.'' * There are many very interesting experiments illustrative of this law, but want of space prevents...
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The American Therapist, Volúmenes1-2

1892
...produces absolute silence. " (On Sound, p. 384, 3d ed.) "Thus," he says, "by adding light to light we can produce darkness, just as we can produce silence by adding sound to sound." (Ib. 358.) Again, in describing the adaptation of the double syren, as a mechanical instrument for...
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