On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 22
... round the sun , being nearly twice as long as that of Saturn . Mr. Adams has computed that Neptune produces a periodical perturbation in the motion of Uranus , whose duration is about 6800 years . The equilibrium of the system , however ...
... round the sun , being nearly twice as long as that of Saturn . Mr. Adams has computed that Neptune produces a periodical perturbation in the motion of Uranus , whose duration is about 6800 years . The equilibrium of the system , however ...
Page 30
... round black spot , precedes its passage over the disc of the planet ; and , after opposition , the shadow follows the satellite . In consequence of the relations already mentioned in the mean motions and mean longitudes of the first ...
... round black spot , precedes its passage over the disc of the planet ; and , after opposition , the shadow follows the satellite . In consequence of the relations already mentioned in the mean motions and mean longitudes of the first ...
Page 33
... round in their orbits . The eclipses of the exterior satellites only take place when the ring is in this position . Mr. Lassell , with a powerful telescope , made by himself , has seen Iapetus , the nearest of the two , on several ...
... round in their orbits . The eclipses of the exterior satellites only take place when the ring is in this position . Mr. Lassell , with a powerful telescope , made by himself , has seen Iapetus , the nearest of the two , on several ...
Page 36
... round the earth more rapidly and in a shorter time now than she did formerly , and that the accelera- tion in her mean motion has been increasing from age to age as the square of the time ( N. 105 ) . All ancient and intermediate ...
... round the earth more rapidly and in a shorter time now than she did formerly , and that the accelera- tion in her mean motion has been increasing from age to age as the square of the time ( N. 105 ) . All ancient and intermediate ...
Page 40
... round into the cone of the earth's shadow . And as the horizontal refraction ( N. 114 ) or bending of the rays surpasses half the sum of the semidiameters of the sun and moon , divided by their mutual distance , the centre of the lunar ...
... round into the cone of the earth's shadow . And as the horizontal refraction ( N. 114 ) or bending of the rays surpasses half the sum of the semidiameters of the sun and moon , divided by their mutual distance , the centre of the lunar ...
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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