Sound: A Course of Eight Lectures Delivered at the Royal Institution of Great Britain |
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Page 97
... periods are of the proper kind , may be substituted for the hand . Fixing , for example , one end of a tolerably heavy rod in a vice , or , better still , screwing one end into an anvil or other heavy block , and attaching to the free ...
... periods are of the proper kind , may be substituted for the hand . Fixing , for example , one end of a tolerably heavy rod in a vice , or , better still , screwing one end into an anvil or other heavy block , and attaching to the free ...
Page 100
... period proper to the lower segment of the tube , precisely the same effect would be produced . We thus reduce both effects to one and the same cause ; namely , the combination of direct and re- flected undulations . And here , let me ...
... period proper to the lower segment of the tube , precisely the same effect would be produced . We thus reduce both effects to one and the same cause ; namely , the combination of direct and re- flected undulations . And here , let me ...
Page 101
... period of his impulses , and thus stops the accumulation of the motion . * FIG . 37 . A B Let me now pass on from these gross , but not unbeau- tiful mechanical vibrations , to those of a sounding string . Here is our monochord with its ...
... period of his impulses , and thus stops the accumulation of the motion . * FIG . 37 . A B Let me now pass on from these gross , but not unbeau- tiful mechanical vibrations , to those of a sounding string . Here is our monochord with its ...
Page 112
... period of b . Attached to c , the same string separates into four , while when attached to d it divides into eight ventral segments . The number of the ventral segments is proportional to the rapidity of vibra- tion . It is evident that ...
... period of b . Attached to c , the same string separates into four , while when attached to d it divides into eight ventral segments . The number of the ventral segments is proportional to the rapidity of vibra- tion . It is evident that ...
Page 122
... period of vibration of the fundamental tone , the intensity of the same tone was 9. In this case the second harmonic was nearly quenched . When , however , the duration of contact was diminished to ths of the period of the fundamental ...
... period of vibration of the fundamental tone , the intensity of the same tone was 9. In this case the second harmonic was nearly quenched . When , however , the duration of contact was diminished to ths of the period of the fundamental ...
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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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