On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 153
... rays of light , instead of moving through the atmosphere in straight lines , are continually inflected towards the ... ray and the perpendicular is in a constant ratio to the sine of the angle contained by the refracted ray and the same ...
... rays of light , instead of moving through the atmosphere in straight lines , are continually inflected towards the ... ray and the perpendicular is in a constant ratio to the sine of the angle contained by the refracted ray and the same ...
Page 154
... rays pass perpendicularly from one medium into another , they are not bent ; and ex- perience shows , that in the ... rays which proceed from them . As the rays must pass through strata of different densities in coming to us , it follows ...
... rays pass perpendicularly from one medium into another , they are not bent ; and ex- perience shows , that in the ... rays which proceed from them . As the rays must pass through strata of different densities in coming to us , it follows ...
Page 156
... rays through media of different densities , by the very simple experiment of looking along a red - hot poker at a distant object . Two images are seen , one direct and another inverted , in con- sequence of the change induced by the ...
... rays through media of different densities , by the very simple experiment of looking along a red - hot poker at a distant object . Two images are seen , one direct and another inverted , in con- sequence of the change induced by the ...
Page 158
... rays will arrive through a horizontal stratum . Since so great a quantity of light is lost in passing through the atmo- sphere , many celestial objects are altogether invisible from the plain , which may be seen from elevated situations ...
... rays will arrive through a horizontal stratum . Since so great a quantity of light is lost in passing through the atmo- sphere , many celestial objects are altogether invisible from the plain , which may be seen from elevated situations ...
Page 159
... rays by means of a lens , the compound beam became pure white as before . He insulated each coloured ray , and , finding that it was no longer capable of decomposition by refraction , concluded that white light consists of seven kinds ...
... rays by means of a lens , the compound beam became pure white as before . He insulated each coloured ray , and , finding that it was no longer capable of decomposition by refraction , concluded that white light consists of seven kinds ...
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Common terms and phrases
61 Cygni action appears atmosphere attraction bismuth bodies cause centre centrifugal force chemical colour comet consequently copper crystal dark degree density diamagnetic diameter diminishes direction disturbing double stars earth ecliptic effect electricity equal equator ethereal medium excentricity Fcap force glass gravitation greater heat hemisphere increase intensity Jupiter latitude length light lines liquid longitude luminous lunar magnetic major axis mass meridian metallic miles moon motion move nearly nebula nodal lines nodes northern hemisphere NOTE nutation observed optic axis orbit oscillations parallax paramagnetic particles passing perihelion periodic phenomena planets plate polarized pole position Post 8vo produced quantity rays reflected refraction refrangible revolution revolving right angles rings rotation round satellites Sir John Herschel solar spectrum space stars substances sun's surface telescope temperature terrestrial tion tourmaline transmitted tricity undulations Uranus vapour variation velocity vibrations Vols Voltaic waves wire Woodcuts