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Libros Libros 1 - 10 de 10 sobre ... the most powerful fog-signal which has hitherto been tried in England. It is...
" ... the most powerful fog-signal which has hitherto been tried in England. It is specially powerful when local noises, such as those of wind, rigging, breaking waves, shore surf, and the rattle of pebbles, have to be overcome. Its density, quality, pitch,... "
Sound, 8 lectures - Página 316
por John Tyndall - 1875
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The Nautical Magazine: A Journal of Papers on Subjects Connected ..., Volumen43

1874
...to enable us to come to the sure conclusion that, on the whole, the steam-syren is, beyond question, the most powerful fog-signal which has hitherto been...noises, such as those of wind, rigging, breaking waves, shore-surf, and the rattle of pebbles have to be overcome. Its density, quality, pitch, and penetration...
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The Nautical Magazine: A Journal of Papers on Subjects Connected ..., Volumen50

1881
...breaking waves, shore surf, paddle-wheels, and the working of engines — have to be contended with, " its density, quality, pitch, and penetration, render it dominant over such noises after all other signal- sounds have succumbed." It is obvious that this power to overcome obstructions is the true...
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The Contemporary Review, Volumen25

1875
...and long-continued as to enable us to come to tbe sure conclusion that, on the whole, the steam-siren is the most powerful fog-signal which has hitherto...render it dominant over such noises after all other signal sounds have succumbed. I have not, therefore, hesitated to recommend the introduction of the...
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Journal of the Royal United Service Institution, Volumen19

1876
...The Siren. — We now come to the instrument of which Dr. Tyndall says, that " it is beyond question the most powerful fog-signal which ' has hitherto...render it dominant over such noises ' after all other signal sounds have succumbed." If nothing else had been demonstrated in our lengthened investigation,...
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Lighthouse Construction and Illumination

Thomas Stevenson - 1881 - 289 páginas
...this instrument ; and in 1874 he reported to the Trinity House that the " siren is, beyond question, the most powerful fog-signal which has hitherto been...noises, such as those of wind, rigging, breaking- waves, shore-surf, and the rattle of pebbles, have to be overcome. Its density, quality, pitch, and penetration,...
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journal of the society of arts

george bell - 1881
...breaking waves, shore surf, paddle-wheels, and the working of engines — have to be contended with, "its density, quality, pitch, and penetration, render it dominant over such noises after all other signal sounds have succumbed." It is obvious that this power to overcome obstructions is the true test...
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Appletons' Annual Cyclopaedia and Register of Important Events

1887
...paddle-wheels, or the working of an engine. This it has to such extent that it has been well said that " its density, quality, pitch, and penetration render it dominant over such noises after all other signal sounds have succumbed." The committee sent in 1872 by *iie British lighthouse establishment,...
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The New Review, Volumen6

1892
...question the most effective fog signal which had hitherto been tried in England. It was especially powerful when local noises, such as those of wind,...breaking waves, shore surf, and the rattle of pebbles had to be overcome. Its density, quality, pitch, and penetrative power rendered it dominant over such...
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The Popular Science Monthly, Volumen6

1875
...and long-continued as to enable us to come to the sure conclusion that, on the whole, the steam-siren is the most powerful fog-signal which has hitherto...noises, such as those of wind, rigging, breaking waves, shore-surf, and the rattle of pebbles, have to be overcome. Its density, quality, pitch, and penetration,...
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Journal of the Franklin Institute

1876
...as to enable us to come to the sure conclusion that on the whole the steam siren ia beyond question the most powerful fog-signal which has hitherto been...render it dominant over such noises after all other signal sounds have succumbed. I have not, therefore, hesitated to recommend the introduction of the...
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