Elementary Lessons on Sound ...Macmillan & Company, 1879 - 191 sider |
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Side 6
... Vibrations of Strings . The laws are as follows : - 1. For a given string and a given tension , the time of a vibration varies directly , the vibration number inversely , as the length . 2. When the length of the string is given , the ...
... Vibrations of Strings . The laws are as follows : - 1. For a given string and a given tension , the time of a vibration varies directly , the vibration number inversely , as the length . 2. When the length of the string is given , the ...
Side 7
... number of vibrations in a second , or the frequency . Period and frequency are therefore reciprocals . Fig . 1. - Vibrations of stretched string . form of vibration is that in which the string vibrates. travelling over twice the length ...
... number of vibrations in a second , or the frequency . Period and frequency are therefore reciprocals . Fig . 1. - Vibrations of stretched string . form of vibration is that in which the string vibrates. travelling over twice the length ...
Side 15
... number may be indefinitely increased . Summary of String - Vibration . 1. Transverse . - Alone used in music ... Vibrations of Bars or Rods are the next in simplicity to those of strings . They are of three kinds , longitudinal , torsional , ...
... number may be indefinitely increased . Summary of String - Vibration . 1. Transverse . - Alone used in music ... Vibrations of Bars or Rods are the next in simplicity to those of strings . They are of three kinds , longitudinal , torsional , ...
Side 16
... number of deal rods , about twenty or more , standing up vertically , like the strings of a harp , from a sound - board obliquely Fig . 5. - Longitudinal vibrations of rods . placed below , into which their lower extremities are firmly ...
... number of deal rods , about twenty or more , standing up vertically , like the strings of a harp , from a sound - board obliquely Fig . 5. - Longitudinal vibrations of rods . placed below , into which their lower extremities are firmly ...
Side 17
... vibrating with two nodes in the ratio of 9 to 49 , one with three nodes in that of 9 to 81 , and so on . A rod supported at one end gives a number of vibrations in inverse ratio to the square of its length . It can be made to vibrate in ...
... vibrating with two nodes in the ratio of 9 to 49 , one with three nodes in that of 9 to 81 , and so on . A rod supported at one end gives a number of vibrations in inverse ratio to the square of its length . It can be made to vibrate in ...
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bassoon beats bell Cambridge cartilages cavity chords clarinet comma consonant corresponding Crown 8vo density Edition elasticity ELEMENTARY TREATISE English enharmonic equal temperament Eton College excited experiments Extra fcap fifth flame flute fork fundamental note give harmonic harmonium heard heat Helmholtz HISTORY human voice instrument intervals J. P. MAHAFFY John's College keyboard keys late Fellow LATIN length longitudinal Lord Rayleigh lower major Mathematical membrane metal method metres Minor Sixth minor third monochord motion musical tones named nodes number of vibrations numerous Illustrations oboe octave ordinary organ Owens College Oxford perfect perfect fifths pipe pitch plate prime tone produced Professor ratio reed resonance rotating scale schismas School semitone sharpened siren sixth sonorous source of sound stopped string temperament temperature termed tonometer tube tuned tuning-fork unison upper partial tones velocity of sound vibration number violin wave wave-length