Elementary Lessons on Sound |
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Page xi
... Method of Photographing Vibrations . 51 .-- Curve representing a Sound - wave . 93 99 111 52. - Perronet Thompson's Keyboard 147 53. - Poole's Keyboard . 54 .-- Bosanquet's Generalised Keyboard 55. - Plan of Natural Fingerboard 56 ...
... Method of Photographing Vibrations . 51 .-- Curve representing a Sound - wave . 93 99 111 52. - Perronet Thompson's Keyboard 147 53. - Poole's Keyboard . 54 .-- Bosanquet's Generalised Keyboard 55. - Plan of Natural Fingerboard 56 ...
Page 10
... method of excitation to instruments of the piano species , among which , elastic rollers , and rotating bows of parchment or horsehair passing over rollers , may be named . ' A current of air directed against a string has long been ...
... method of excitation to instruments of the piano species , among which , elastic rollers , and rotating bows of parchment or horsehair passing over rollers , may be named . ' A current of air directed against a string has long been ...
Page 12
... a striking method of illustrating the vibrations of a string , by fixing one of its extremities to the prong of a tuning - fork , and the. Fig . 4 .-- Sonometer . Fig . 6. - Marloye's harp . Fig . 7. 12 [ CHAP . ON SOUND .
... a striking method of illustrating the vibrations of a string , by fixing one of its extremities to the prong of a tuning - fork , and the. Fig . 4 .-- Sonometer . Fig . 6. - Marloye's harp . Fig . 7. 12 [ CHAP . ON SOUND .
Page 24
... method is that largely and successfully employed by Helmholtz in the investigation of vowel sounds , and in his " Vibration Microscope , " that namely of causing the fork itself , or one in harmonic relation with it , to become the ...
... method is that largely and successfully employed by Helmholtz in the investigation of vowel sounds , and in his " Vibration Microscope , " that namely of causing the fork itself , or one in harmonic relation with it , to become the ...
Page 25
... and sub- sequently investigated by Wheatstone . Chladni's method of investigation consisted in supporting plates of glass. Fig . 12. - Vibrations of a plate . Fig . 15. - Section of a bell . Fig. 1. ] 25 MODES OF PRODUCTION OF SOUND .
... and sub- sequently investigated by Wheatstone . Chladni's method of investigation consisted in supporting plates of glass. Fig . 12. - Vibrations of a plate . Fig . 15. - Section of a bell . Fig. 1. ] 25 MODES OF PRODUCTION OF SOUND .
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acoustical alteration apparatus arytenoid cartilages bassoon beats bell cartilages cavity clarinet comma consonant corresponding density determined diameter diapason digitals disc distance double elastic enharmonic epiglottis equal equal temperament excited experiments Fahrenheit fifth fixed flame flat flute fork friction fundamental note give given harmonic harmonium heard heat Helmholtz human voice inch instrument intervals keyboard keys length longitudinal Lord Rayleigh lower major sixth major third means membrane metal method metres Minor Sixth minor third monochord motion musical sound musical tones named nodes number of vibrations oboe observed obtained octave ordinary organ orifice pendulum perfect perfect fifths pitch plate prime tone produced prongs ratio reed resonance rotating scale schismas segments semitone sharp sharpened simple siren sonorous source of sound string temperament temperature termed tonometer triad tube tuned tuning-fork unison upper partial tones velocity of sound vibration number violin wave wave-length wire