Elementary Treatise on Natural Philosophy, Volumen4D. Appleton, 1891 |
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Página 860
... fundamental simple vibration and its harmonics ; and every musical note consists of a fundamental tone and its harmonics , 925. Helm- holtz's resonators , 926. Vowel - sounds , 927. Phonograph , 928 , .. pp . 927-940 . CHAPTER LXVI ...
... fundamental simple vibration and its harmonics ; and every musical note consists of a fundamental tone and its harmonics , 925. Helm- holtz's resonators , 926. Vowel - sounds , 927. Phonograph , 928 , .. pp . 927-940 . CHAPTER LXVI ...
Página 911
... fundamental note , its vibration - frequency being therefore greater in the ratio . To obtain the notes of the gamut , we commence with the string as a whole , and then employ portions of its length repre- sented by the fractions ...
... fundamental note , its vibration - frequency being therefore greater in the ratio . To obtain the notes of the gamut , we commence with the string as a whole , and then employ portions of its length repre- sented by the fractions ...
Página 912
... fundamental tones . Bells and vibrating plates have higher tones mingled with the fundamental tone ; but these higher tones are not harmonics in the sense in which we use the word . A violin string sometimes fails to yield its fundamental ...
... fundamental tones . Bells and vibrating plates have higher tones mingled with the fundamental tone ; but these higher tones are not harmonics in the sense in which we use the word . A violin string sometimes fails to yield its fundamental ...
Página 914
... fundamental note , each of the two halves AC , CB ( Fig . 620 ) , is alternately extended and compressed , one being B Fig . 620. - Longitudinal Vibration . First Tone . extended while the other is compressed . At the middle point C ...
... fundamental note , each of the two halves AC , CB ( Fig . 620 ) , is alternately extended and compressed , one being B Fig . 620. - Longitudinal Vibration . First Tone . extended while the other is compressed . At the middle point C ...
Página 915
... fundamental tones are usually of an extremely complex character , and this fact is closely connected with the unmusical or only semi- musical character of the sounds emitted . When one face of the body is horizontal , the division into ...
... fundamental tones are usually of an extremely complex character , and this fact is closely connected with the unmusical or only semi- musical character of the sounds emitted . When one face of the body is horizontal , the division into ...
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Términos y frases comunes
achromatic analyser angle of incidence beam body bright lines called centimetres centre coincidence colours concave mirror conjugate foci convex convex lens crystal curvature denote diameter direction distance employed equal experiment eye-piece flame focal length frequency of vibration fundamental note glass harmonics Hence Iceland-spar incident ray index of refraction interval inverted law of sines lens lenses luminous point magnifying power medium metres minimum deviation nearly node normal number of vibrations object object-glass oblique observer obtained octave optical ordinary parallel particles pencil perpendicular pipe pitch placed plane mirror plate polarization portion position principal axis principal focus prism produced propagation radius rarefaction ratio reflected rays refrangibility represented retina rotation screen seen side slit solar spectra spectrum spherical string subtends surface telescope tion tone traversing tube undulation velocity of sound vertical vibrations vibrations per second violet virtual image visual angle wave-front wave-length waves