Elementary Treatise on Natural Philosophy, Volumen4D. Appleton, 1891 |
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Página 859
... propagation . Relation between period , wave- length , and velocity of propagation , 869. Undulation considered geometrically ; For- ward velocity of particle proportional to its condensation , 870. Propagation in open space . Inverse ...
... propagation . Relation between period , wave- length , and velocity of propagation , 869. Undulation considered geometrically ; For- ward velocity of particle proportional to its condensation , 870. Propagation in open space . Inverse ...
Página 860
... PROPAGATION OF LIGHT . Light . Hypothesis of æther , 936. Excessive frequency of vibration . Sharpness of shadows due to shortness of waves , 937. Images produced by small apertures , 938 . Shadows . Umbra and penumbra , 939. Velocity ...
... PROPAGATION OF LIGHT . Light . Hypothesis of æther , 936. Excessive frequency of vibration . Sharpness of shadows due to shortness of waves , 937. Images produced by small apertures , 938 . Shadows . Umbra and penumbra , 939. Velocity ...
Página 862
... propagation . Two wave - surfaces in non - isotropic Principle of Huygens . Wave - front , 1079 . Spherical wave - surface in isotropic medium . medium , 1080. Construction for wave - front in refraction . Law of sines , 1081 ...
... propagation . Two wave - surfaces in non - isotropic Principle of Huygens . Wave - front , 1079 . Spherical wave - surface in isotropic medium . medium , 1080. Construction for wave - front in refraction . Law of sines , 1081 ...
Página 864
... , the equivalent is— 41.6 millions for the centimetre and Centigrade degree ; or 1 gramme - degree is equivalent to 41 6 million ergs . ACOUSTICS . CHAPTER LXII . PRODUCTION AND PROPAGATION OF SOUND X FRENCH AND ENGLISH MEASURES .
... , the equivalent is— 41.6 millions for the centimetre and Centigrade degree ; or 1 gramme - degree is equivalent to 41 6 million ergs . ACOUSTICS . CHAPTER LXII . PRODUCTION AND PROPAGATION OF SOUND X FRENCH AND ENGLISH MEASURES .
Página 865
Augustin Privat-Deschanel Joseph David Everett. ACOUSTICS . CHAPTER LXII . PRODUCTION AND PROPAGATION OF SOUND . 866. Sound is a Vibration . - Sound , as directly known to us by the sense of hearing , is an impression of a peculiar ...
Augustin Privat-Deschanel Joseph David Everett. ACOUSTICS . CHAPTER LXII . PRODUCTION AND PROPAGATION OF SOUND . 866. Sound is a Vibration . - Sound , as directly known to us by the sense of hearing , is an impression of a peculiar ...
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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