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" ... if its radius be three feet, it will contain nine times the quantity of matter ; if four feet, it will contain sixteen times the quantity of matter, and so on. Thus the quantity of matter set in motion augments as the square of the distance from the... "
The Microcosm: The Organ of Substantial Philosophy - Page 124
1890
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Sound: A Course of Eight Lectures Delivered at the Royal Institution of ...

John Tyndall - 1867 - 364 pages
...case of a shell of air of a certain thickness, with a radius of one foot, reckoned from the centre of explosion. A shell of air of the same thickness, but...motion augments as the square of the distance from the centre of explosion. The intensity or loudness of the sound diminishes in the same proportion....
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Sound: A Course of Eight Lectures Delivered at the Royal Institution of ...

John Tyndall - 1867 - 372 pages
...case of a shell of air of a certain thickness, with a radius of one foot, reckoned from the centre of explosion. A shell of air of the same thickness, but...motion augments as the square of the distance from the centre of explosion. The intensity or loudness of the sound diminishes in the same proportion....
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Sound, 8 lectures

John Tyndall - 1875 - 466 pages
...of the same thickness, but of two feet radius, will contain i Poisson AKcanique, vol. ii. p. 707four times the quantity of matter; if its radius be three...motion augments as the square of the distance from the centre of explosion. The intensity or loudness of sound diminishes in the same proportion. We express...
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Sound

John Tyndall - 1875 - 628 pages
...air of the same thickness, but of two feet radius, will contain 1 Poisson Mecanique, vol. ii. p. 707. four times the quantity of matter; if its radius be...matter, and so on. Thus the quantity of matter set in motton augments as the square of the distance from the centre of explosion. The intensity or loudness...
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Evolution of Sound: Part of the Problem of Human Life Here and Hereafter ...

Alexander Wilford Hall - 1878 - 300 pages
...in the loudness of sound? The reader has not forgotten his language, recently quoted. He says: — "If its radius be three feet it will contain nine...contain sixteen times the quantity of matter, and so on. . . . The intensity or loudness of sound diminishes in the same proportion." Why did not this careful...
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The Problem of Human Life: Embracing the "evolution of Sound" and "evolution ...

Alexander Wilford Hall - 1880 - 544 pages
...explosion. A shell of air of the same thickness, but of two feet radius, will contain four limes tAe quantity of matter ; if its radius be three feet it...motion augments as the square of the distance from the centre of the explosion. The intensity or loudncss of sound diminishes in the same proportion....
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The Problem of Human Life: Embracing the "evolution of Sound" and "evolution ...

Alexander Wilford Hall - 1877 - 546 pages
...in the loudness of sound? The reader has not forgotten his language, recently quoted. He says: — "If its radius be three feet it will contain nine...contain sixteen times the quantity of matter, and so on. . . . The intensity or louJncss of sound diminishes in the same proportion." Why did not this careful...
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The Problem of human life : embracing the "evolution of sound" and ...

Alexander Wilford Hall - 1883 - 552 pages
...his language, recently quoted. He says: — "If its radins be three feet it will contain nine tints the quantity of matter; if four feet it will contain sixteen times the quantity of matter, and *o on. . . . The intensity or loudness of sound iimittiihes in the same proportion." Why did not this...
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The Problem of Human Life: Embracing the "evolution of Sound" and "evolution ...

Alexander Wilford Hall - 1880 - 544 pages
...[from the center of the explosion] it will contain nine timet the quantity of matter; if four inches it will contain sixteen times the quantity of matter, and so on. . . . The intensity or loujncss of sound diminishes in the same proportion." It would really seem that...
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Wilford's Microcosm, Volume 3

1883 - 402 pages
...case of a shell of air of a certain thickness with a radius of one foot, reckoned from the center of explosion. A shell of air of the same thickness, but...center of the explosion. The intensity or loudness of the sound diminishes in the same proportion. ' Does Prof. Tyndall mean to say that this " enfeeblement...
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