Sound: A Course of Eight Lectures Delivered at the Royal Institution of Great BritainLongmans, Green,, 1867 - 335 páginas |
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Página 7
... Observe also that the bell is suspended by strings , for if it were allowed to rest upon the plate of the air - pump , the vibrations would communicate themselves to the plate , and be transmitted * A very effective instrument presented ...
... Observe also that the bell is suspended by strings , for if it were allowed to rest upon the plate of the air - pump , the vibrations would communicate themselves to the plate , and be transmitted * A very effective instrument presented ...
Página 12
... observe , in a rough way , the speed with which the sound - wave is propagated . The instant I clap , the flame is extinguished ; there is no sen- sible interval between the clap and the extinction of the I place my watch at one end the ...
... observe , in a rough way , the speed with which the sound - wave is propagated . The instant I clap , the flame is extinguished ; there is no sen- sible interval between the clap and the extinction of the I place my watch at one end the ...
Página 13
... observed the transmission of sound through the empty waterpipes of Paris , and found that he could hold a conversation in a low voice through an iron tube 3120 feet in length . The lowest possible whisper , indeed , could be heard at ...
... observed the transmission of sound through the empty waterpipes of Paris , and found that he could hold a conversation in a low voice through an iron tube 3120 feet in length . The lowest possible whisper , indeed , could be heard at ...
Página 18
... observation : -Between him and the falls lay a vast grassy plain , with multitudes of bare rocks protruding from it . When exposed to the sun , these rocks assumed a temperature far higher than that of the adjacent grass ; over each of ...
... observation : -Between him and the falls lay a vast grassy plain , with multitudes of bare rocks protruding from it . When exposed to the sun , these rocks assumed a temperature far higher than that of the adjacent grass ; over each of ...
Página 27
... observations , and means were devised for measuring with the utmost accuracy the time required by the sound to pass from ... observed between the appearance of the flash and the arrival of the sound . The velocity of sound in air once ...
... observations , and means were devised for measuring with the utmost accuracy the time required by the sound to pass from ... observed between the appearance of the flash and the arrival of the sound . The velocity of sound in air once ...
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Palavras e frases frequentes
auditory nerve augmentation beats bell burner carbonic acid cause centre Chladni clarionet column of air condensation corresponding Crown 8vo damp density disc distance divides division Edition elasticity embouchure Eustachian tube experiment flame fork four fundamental tone glass harmonic hear heard heat Helmholtz higher tones human voice hydrogen illustrated inches instrument intensity interval lecture length light liquid membrane ments motion musical sound nodal lines nodes number of vibrations obtain octave open pipe organ-pipe orifice oscillate overtones particles pass pitch plate pressure produced prongs puffs pulses rapidity of vibration rarefaction rate of vibration ratio reed reflected rendered resonance resultant tone rotation sonorous wave square stopped pipe stretched string surface syren temperature tion tube tuning-fork tympanic membrane unison vein velocity in air velocity of sound ventral segments vibrating segments vibrating strings voice vols vowel wire Woodcuts
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