On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 72
... rays , geologists have been induced to believe , from the fossil remains , that the mean temperature of the globe is decreasing . The high temperature of mines , hot springs , and above all the internal fires which have produced , and ...
... rays , geologists have been induced to believe , from the fossil remains , that the mean temperature of the globe is decreasing . The high temperature of mines , hot springs , and above all the internal fires which have produced , and ...
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 ...
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Common terms and phrases
61 Cygni absorbed action appears atmosphere attraction bismuth blue bodies centre centrifugal force chemical circular polarization coloured rings comet consequently copper crystal dark density diamagnetic diameter diminishes direction distance disturbing earth ecliptic effect electricity equal equator ethereal medium excentricity experiments extreme force gravitation greater heat hemisphere increase intensity Jupiter latitude length lines liquid longitude luminous lunar magnetic mass mean meridian metallic miles molecules moon motion move nebula nodal lines nodes NOTE nutation observed optic axis orbit parallax paramagnetic particles passing perihelion period perpendicular phenomena plane polarized light pole position prism produced quantity rays reflected refraction refrangible retrograde motion revolution revolving right angles rotation round satellites Sir John Herschel solar spectrum sound space stars substances sun's surface telescope temperature terrestrial theory tion tourmaline transmitted tricity undulations Uranus vapour velocity vibrations violet visible Voltaic waves wire