On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 9
... motion of a body , estimated from the vernal equinox , is its mean longitude ; and its elliptical , or true motion , reckoned from that point , is its true longitude ( N. 47 ) : both being estimated from west to east , the direction in ...
... motion of a body , estimated from the vernal equinox , is its mean longitude ; and its elliptical , or true motion , reckoned from that point , is its true longitude ( N. 47 ) : both being estimated from west to east , the direction in ...
Page 10
... motion , the nature and position of its orbit must be ascertained by observation . This depends upon seven quantities , called the elements of the orbit ( N. 57 ) . These are , the length of the major axis , and the ex- centricity ...
... motion , the nature and position of its orbit must be ascertained by observation . This depends upon seven quantities , called the elements of the orbit ( N. 57 ) . These are , the length of the major axis , and the ex- centricity ...
Page 14
... motion , including both these kinds of disturbance , may be represented by a body revolving in an ellipse , and making small and transient deviations , now on one side of its path , and now on the other , whilst the ellipse itself is ...
... motion , including both these kinds of disturbance , may be represented by a body revolving in an ellipse , and making small and transient deviations , now on one side of its path , and now on the other , whilst the ellipse itself is ...
Page 15
... motion of the planet in longitude . The tangential force some- times accelerates the planet's motion , sometimes retards it , and occasionally has no effect at all . Were the orbits of both planets circular , a complete compensation ...
... motion of the planet in longitude . The tangential force some- times accelerates the planet's motion , sometimes retards it , and occasionally has no effect at all . Were the orbits of both planets circular , a complete compensation ...
Page 16
... motion . When greater , the curvature of the disturbed planet's path , on leaving its perihelion ( N. 64 ) , or point nearest the sun , is greater than it would be in the ellipse , which brings the planet to its aphelion ( N. 65 ) , or ...
... motion . When greater , the curvature of the disturbed planet's path , on leaving its perihelion ( N. 64 ) , or point nearest the sun , is greater than it would be in the ellipse , which brings the planet to its aphelion ( N. 65 ) , or ...
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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