Elementary Lessons on Sound |
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Page 15
... original direction , one longitudinal , and one torsional . By accidental circumstances the number may be indefinitely increased . Summary of String - Vibration . I. Transverse . - Alone used in music . Velocity = √ . 1 m Period n = 21 ...
... original direction , one longitudinal , and one torsional . By accidental circumstances the number may be indefinitely increased . Summary of String - Vibration . I. Transverse . - Alone used in music . Velocity = √ . 1 m Period n = 21 ...
Page 27
... original shape of the plate . Not The gong is usually a circular sheet of hard metal , rendered more elastic by hammering , strengthened at the edge by a deep flange of the same nature . The vibrations here are very complex and ...
... original shape of the plate . Not The gong is usually a circular sheet of hard metal , rendered more elastic by hammering , strengthened at the edge by a deep flange of the same nature . The vibrations here are very complex and ...
Page 37
... original state after traversing twice the length of the tube , suffering in the process two reflections ; but when one end is closed , a double passage is not sufficient to close the cycle of changes . The original state cannot be ...
... original state after traversing twice the length of the tube , suffering in the process two reflections ; but when one end is closed , a double passage is not sufficient to close the cycle of changes . The original state cannot be ...
Page 39
... original lamina of air issuing from the bellows , causing it to vibrate and to communicate its motion to that within the pipe . Indeed , the course of the air currents can to a certain extent be demonstrated by feeding the pipe with ...
... original lamina of air issuing from the bellows , causing it to vibrate and to communicate its motion to that within the pipe . Indeed , the course of the air currents can to a certain extent be demonstrated by feeding the pipe with ...
Page 52
... original position of rest , it propagates the imparted impulse to its neighbours , and each neighbouring particle to those successively in contact with it . It is therefore necessary here to advert briefly to wave motion generally , and ...
... original position of rest , it propagates the imparted impulse to its neighbours , and each neighbouring particle to those successively in contact with it . It is therefore necessary here to advert briefly to wave motion generally , and ...
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Common terms and phrases
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