Sound: A Course of Eight Lectures Delivered at the Royal Institution of Great Britain |
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Page 6
... proved this was made by a philosopher named Hawks- bee , before the Royal Society in 1705. * He so fixed a bell within the receiver of an air - pump , that he could ring the bell when the receiver was exhausted . Before the air was ...
... proved this was made by a philosopher named Hawks- bee , before the Royal Society in 1705. * He so fixed a bell within the receiver of an air - pump , that he could ring the bell when the receiver was exhausted . Before the air was ...
Page 22
... proved since his time that the waves of light do bend round opaque bodies ; but with that we have nothing now to do . A sound - wave certainly bends thus round an obstacle , though as it diffuses itself in the air at the back of the ...
... proved since his time that the waves of light do bend round opaque bodies ; but with that we have nothing now to do . A sound - wave certainly bends thus round an obstacle , though as it diffuses itself in the air at the back of the ...
Page 27
... is about one - sixth less than actual observation had proved the velocity to be , and the most curious suppositions were made to account for the discrepancy . Newton himself threw out the FIG . 10 . conjecture that it was only in.
... is about one - sixth less than actual observation had proved the velocity to be , and the most curious suppositions were made to account for the discrepancy . Newton himself threw out the FIG . 10 . conjecture that it was only in.
Page 28
... proved that when air is compressed , heat is generated . By another experiment , I can show you that when air is rarefied , cold is developed . This brass box contains a quantity of condensed air . I open the cock , and permit the air ...
... proved that when air is compressed , heat is generated . By another experiment , I can show you that when air is rarefied , cold is developed . This brass box contains a quantity of condensed air . I open the cock , and permit the air ...
Page 33
... proved that Ср V'2 = C V2 Inserting the values of V and V ' in this equation , and making the calculation , we find СР = 1.42 . C Thus , without knowing either the specific heat at con- stant volume or at constant pressure , Laplace ...
... proved that Ср V'2 = C V2 Inserting the values of V and V ' in this equation , and making the calculation , we find СР = 1.42 . C Thus , without knowing either the specific heat at con- stant volume or at constant pressure , Laplace ...
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Common terms and phrases
auditory nerve augmentation beats bell carbonic acid cause centre Chladni column of air condensation corresponding Crown 8vo 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 observed obtain octave open pipe organ-pipe orifice oscillate overtones particles pass pitch plate Post 8vo pressure produced prongs puffs pulse 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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