On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 26
... changes in 240 years , and arises from the circumstance of thirteen times the periodic time of Venus being nearly equal to eight times that of the Earth . Small as it is , it is sensible in the motions of the Earth . It might be ...
... changes in 240 years , and arises from the circumstance of thirteen times the periodic time of Venus being nearly equal to eight times that of the Earth . Small as it is , it is sensible in the motions of the Earth . It might be ...
Page 27
... changes which take place in the planetary system are exhibited on a smaller scale by Jupiter and his satellites ; and , as the period requisite for the development of the inequalities of these moons only extends to a few centuries , it ...
... changes which take place in the planetary system are exhibited on a smaller scale by Jupiter and his satellites ; and , as the period requisite for the development of the inequalities of these moons only extends to a few centuries , it ...
Page 36
... changes from secular inequalities ; for , although the mean action of the sun on the moon depends upon the inclination of the lunar orbit to the ecliptic , and the position of the ecliptic is subject to a secular inequality , yet ...
... changes from secular inequalities ; for , although the mean action of the sun on the moon depends upon the inclination of the lunar orbit to the ecliptic , and the position of the ecliptic is subject to a secular inequality , yet ...
Page 37
... changes in the motions of the satellites , which led him to suspect that the acceleration in the mean motion of the moon might be connected with the secular variation in the excentricity of the terrestrial orbit . Analysis has shown ...
... changes in the motions of the satellites , which led him to suspect that the acceleration in the mean motion of the moon might be connected with the secular variation in the excentricity of the terrestrial orbit . Analysis has shown ...
Page 38
... changes the sun's distance from the earth , and occasions the acceleration in the moon's mean motion , must affect the nodes and perigee . It consequently appears , from theory as well as observation , that both these elements are ...
... changes the sun's distance from the earth , and occasions the acceleration in the moon's mean motion , must affect the nodes and perigee . It consequently appears , from theory as well as observation , that both these elements are ...
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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