On the Connexion of the Physical SciencesMurray, 1858 - 555 pages |
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Page 18
... periodic perturbations in latitude , secular variations in the inclination of the orbit , and a retrograde motion to its nodes on the true plane of the ecliptic ( N. 71 ) . This force tends to pull the disturbed body above , or push ( N ...
... periodic perturbations in latitude , secular variations in the inclination of the orbit , and a retrograde motion to its nodes on the true plane of the ecliptic ( N. 71 ) . This force tends to pull the disturbed body above , or push ( N ...
Page 19
... periodic times being pro- portional to the cubes of the mean distances of the planets from the sun , that one cannot vary without affecting the other . And it is proved , that any variations which do take place are transient , and ...
... periodic times being pro- portional to the cubes of the mean distances of the planets from the sun , that one cannot vary without affecting the other . And it is proved , that any variations which do take place are transient , and ...
Page 20
... periodic , are expressed analytically by the sines and cosines of circular arcs ( N. 76 ) , which increase with the time ; and , as a sine or cosine can never exceed the radius , but must oscillate between zero and unity , however much ...
... periodic , are expressed analytically by the sines and cosines of circular arcs ( N. 76 ) , which increase with the time ; and , as a sine or cosine can never exceed the radius , but must oscillate between zero and unity , however much ...
Page 21
... periodic time than any of those previously discovered , and a greater excentricity , with the exception of Nysa . Its orbit cuts that of Mars , and comes nearer to the earth than the orbits of either Mars or Venus , a circumstance which ...
... periodic time than any of those previously discovered , and a greater excentricity , with the exception of Nysa . Its orbit cuts that of Mars , and comes nearer to the earth than the orbits of either Mars or Venus , a circumstance which ...
Page 24
... gravity of the universe the only instance of absolute and eternal repose . All the periodic and secular inequalities deduced from the law of gravitation are so perfectly confirmed by observation , that 24 SECT . III . INVARIABLE PLANE .
... gravity of the universe the only instance of absolute and eternal repose . All the periodic and secular inequalities deduced from the law of gravitation are so perfectly confirmed by observation , that 24 SECT . III . INVARIABLE PLANE .
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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