Elementary Treatise on the Wave-theory of LightLongmans, Green, 1873 - 247 страници |
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Страница 6
... follows , that the direct light of the fixed stars , and the reflected light of the satellites , travel with the same velocity . ( 11 ) The velocity of light , emanating from a terrestrial source , has been recently measured by M ...
... follows , that the direct light of the fixed stars , and the reflected light of the satellites , travel with the same velocity . ( 11 ) The velocity of light , emanating from a terrestrial source , has been recently measured by M ...
Страница 8
... names of the motion of translation and the mo- tion of vibration . The former is more familiar to our thoughts , and is that which we observe , when with the eye we follow the path of a projectile in the air ; or PROPAGATION OF LIGHT .
... names of the motion of translation and the mo- tion of vibration . The former is more familiar to our thoughts , and is that which we observe , when with the eye we follow the path of a projectile in the air ; or PROPAGATION OF LIGHT .
Страница 12
... follows from these principles , that the velocity with which vibratory movement is propagated in an elastic medium de- pends in no degree on the exciting cause , but varies solely with the elasticity of the medium and its density . If ...
... follows from these principles , that the velocity with which vibratory movement is propagated in an elastic medium de- pends in no degree on the exciting cause , but varies solely with the elasticity of the medium and its density . If ...
Страница 13
... follow that some of the particles reach their highest posi- tion when others are in the lowest ; while other particles , intermediate to these , are neither in their highest nor their lowest position , but in some intermediate stage of ...
... follow that some of the particles reach their highest posi- tion when others are in the lowest ; while other particles , intermediate to these , are neither in their highest nor their lowest position , but in some intermediate stage of ...
Страница 17
... follows that the intensity of the light diverging from any luminous origin must decrease inversely as the square of the distance ; for , from the laws of wave propaga- tion , it appears that the space of vibration diminishes in the ...
... follows that the intensity of the light diverging from any luminous origin must decrease inversely as the square of the distance ; for , from the laws of wave propaga- tion , it appears that the space of vibration diminishes in the ...
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amplitudes angle of incidence angle of polarization aperture axes bands beam bodies bright bands Canada balsam centre circularly-polarized coincides colours common light corresponding Crown 8vo crystal denote difference of phase diffracted direction distance diverging double refraction edge Edition elasticity ellipse equal ether extraordinary ray Fresnel fringes glass Iceland spar incident light incident ray inclined index of refraction intensity interference interval of retardation length light reflected luminous origin medium metal molecules observed optic axis ordinary ray parallel particles phenomena plane of incidence plane of polarization plane of reflexion plane-polarized plate polarized light polarized ray polarizing angle portions position principal section prism produced propagated PUBLISHED BY LONGMANS R. A. Proctor ratio reflected light reflected pencil refracted rays refractive index refrangibility result rhomb right angles rings second surface sin² spectrum substance theory thickness tion transmitted traversed undulation vary velocity vibrations vols wave wave-theory Woodcuts