On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 6
... tion ( N. 30 ) ; for the centrifugal force diminishes the gravity of the particles at the equator , and equilibrium can only exist where these two forces are balanced by an increase of gravity . There- fore , as the attractive force is ...
... tion ( N. 30 ) ; for the centrifugal force diminishes the gravity of the particles at the equator , and equilibrium can only exist where these two forces are balanced by an increase of gravity . There- fore , as the attractive force is ...
Page 9
... tion of the centre to or from its mean longitude . The orbits of the principal planets have a very small obliquity or inclination ( N. 53 ) to the plane of the ecliptic in which the earth moves ; and , on that account , astronomers ...
... tion of the centre to or from its mean longitude . The orbits of the principal planets have a very small obliquity or inclination ( N. 53 ) to the plane of the ecliptic in which the earth moves ; and , on that account , astronomers ...
Page 13
... tion : one kind , depending upon their positions with regard to each other , begins from zero , increases to a maximum , decreases , and becomes zero again , when the planets return to the same relative positions . In consequence of ...
... tion : one kind , depending upon their positions with regard to each other , begins from zero , increases to a maximum , decreases , and becomes zero again , when the planets return to the same relative positions . In consequence of ...
Page 18
... whose motion has not hitherto been taken into the account , so that perturba- tion compensates perturbation ; but still a comparatively per- manent change is effected in the inclination , which is 18 SECT . III . VARIATION IN INCLINATION .
... whose motion has not hitherto been taken into the account , so that perturba- tion compensates perturbation ; but still a comparatively per- manent change is effected in the inclination , which is 18 SECT . III . VARIATION IN INCLINATION .
Page 20
... tion , while these vicissitudes embrace myriads of ages . The proof is simple and conclusive . All the variations of the solar system , secular as well as periodic , are expressed analytically by the sines and cosines of circular arcs ...
... tion , while these vicissitudes embrace myriads of ages . The proof is simple and conclusive . All the variations of the solar system , secular as well as periodic , are expressed analytically by the sines and cosines of circular arcs ...
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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