On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 31
... varies in quantity and direction in different parts of the earth's orbit ; but , as it is only 20 " -481 , it is insensible in ordinary cases ( N. 98 ) . The velocity of light deduced from the observed aberration of the fixed stars ...
... varies in quantity and direction in different parts of the earth's orbit ; but , as it is only 20 " -481 , it is insensible in ordinary cases ( N. 98 ) . The velocity of light deduced from the observed aberration of the fixed stars ...
Page 35
... varies with her distance from the perigee ( N. 102 ) of her orbit . Ancient astronomers , who observed the moon solely with a view to the prediction of eclipses , which can only happen in conjunction and opposition , where the ...
... varies with her distance from the perigee ( N. 102 ) of her orbit . Ancient astronomers , who observed the moon solely with a view to the prediction of eclipses , which can only happen in conjunction and opposition , where the ...
Page 49
... . But for a spheroid in rotation the centrifugal force varies , by the laws of mechanics , as the square of the sine of the latitude , from D ยท the equator , where it is greatest , to SECT . VI . FIGURE OF EARTH FROM PENDULUM . 49.
... . But for a spheroid in rotation the centrifugal force varies , by the laws of mechanics , as the square of the sine of the latitude , from D ยท the equator , where it is greatest , to SECT . VI . FIGURE OF EARTH FROM PENDULUM . 49.
Page 52
... varies with the distance of the moon from the earth under the same parallel of latitude , and proves the ellipticity of the lunar orbit . When the moon is at her mean distance , it varies with the terrestrial radii , thus showing that ...
... varies with the distance of the moon from the earth under the same parallel of latitude , and proves the ellipticity of the lunar orbit . When the moon is at her mean distance , it varies with the terrestrial radii , thus showing that ...
Page 53
... varies with the different points of the earth's surface at which it is observed ( N. 133 ) . This difference of time , being entirely the effect of parallax , furnishes the means of computing it from the known motions of the earth and ...
... varies with the different points of the earth's surface at which it is observed ( N. 133 ) . This difference of time , being entirely the effect of parallax , furnishes the means of computing it from the known motions of the earth and ...
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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