Elementary Treatise on Natural Philosophy, Volumen4D. Appleton, 1891 |
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Página 859
... strings , 900. Their laws , 901. Sonometer , 902. Harmonics ; Segmental vibration of strings , 903 . Sympathetic vibrations or resonance ; Sounding - boards , 904. Longitudinal vibra- tions of strings , 905. Stringed instruments , 906 ...
... strings , 900. Their laws , 901. Sonometer , 902. Harmonics ; Segmental vibration of strings , 903 . Sympathetic vibrations or resonance ; Sounding - boards , 904. Longitudinal vibra- tions of strings , 905. Stringed instruments , 906 ...
Página 868
... String . - When a note is produced from a musical string or wire , its vibrations are often of sufficient amplitude to be detected by the eye . The string thus assumes the appearance of an elongated spindle ( Fig . 595 ) . Vibration of ...
... String . - When a note is produced from a musical string or wire , its vibrations are often of sufficient amplitude to be detected by the eye . The string thus assumes the appearance of an elongated spindle ( Fig . 595 ) . Vibration of ...
Página 870
... string , while the bow is applied . All sounds may be resolved into combinations of elementary musi- cal tones occurring simultaneously and in succession . Hence the study of musical sounds must necessarily form the basis of acoustics ...
... string , while the bow is applied . All sounds may be resolved into combinations of elementary musi- cal tones occurring simultaneously and in succession . Hence the study of musical sounds must necessarily form the basis of acoustics ...
Página 900
... string of a violin ) is to have 435 complete vibrations per second in the tempered gamut . This is rather lower than the concert - pitch which has prevailed in this country in recent years , but is probably not so low as that which ...
... string of a violin ) is to have 435 complete vibrations per second in the tempered gamut . This is rather lower than the concert - pitch which has prevailed in this country in recent years , but is probably not so low as that which ...
Página 901
... difference of a certain number of octaves and fifths . In tuning a violin by making the intervals between the strings true fifths , the Pythagorean scheme is virtually employed . 895. Methods of Counting Vibrations . Siren . The instrument.
... difference of a certain number of octaves and fifths . In tuning a violin by making the intervals between the strings true fifths , the Pythagorean scheme is virtually employed . 895. Methods of Counting Vibrations . Siren . The instrument.
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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