On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 3
... changes the system has hitherto undergone , or may hereafter experience - changes which require millions of years for their accomplishment . ments . The accumulated efforts of astronomers , from the earliest dawn of civilization , have ...
... changes the system has hitherto undergone , or may hereafter experience - changes which require millions of years for their accomplishment . ments . The accumulated efforts of astronomers , from the earliest dawn of civilization , have ...
Page 13
... changes , being accomplished in short periods , some in a few months , others in years , or in hundreds of years , are denominated periodic inequalities . The inequalities of the other kind , though occasioned likewise by the disturbing ...
... changes , being accomplished in short periods , some in a few months , others in years , or in hundreds of years , are denominated periodic inequalities . The inequalities of the other kind , though occasioned likewise by the disturbing ...
Page 15
... changes in the distance of the planet from the sun , and affects the form and position of the orbit in its own plane . The third , which may be called the perpendicular force , acts at right angles to the plane of the orbit , occasions ...
... changes in the distance of the planet from the sun , and affects the form and position of the orbit in its own plane . The third , which may be called the perpendicular force , acts at right angles to the plane of the orbit , occasions ...
Page 17
... changes , the length of the major axis is not altered , the orbit only bulges out , or becomes more flat ( N. 70 ) . Thus the variation in the excen- tricity arises from the same cause that occasions the motion of the apsides ( N. 67 ) ...
... changes , the length of the major axis is not altered , the orbit only bulges out , or becomes more flat ( N. 70 ) . Thus the variation in the excen- tricity arises from the same cause that occasions the motion of the apsides ( N. 67 ) ...
Page 18
... change in the inclination of the orbit to the plane of the ecliptic . It is true , part of this secular change in the inclination is com- pensated by the revolution of the disturbing body , whose motion has not hitherto been taken into ...
... change in the inclination of the orbit to the plane of the ecliptic . It is true , part of this secular change in the inclination is com- pensated by the revolution of the disturbing body , whose motion has not hitherto been taken into ...
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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