On the Connexion of the Physical Sciences |
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Page xv
Ethereal Medium — Comets — Do not disturb the Solar System — Their Orbits and Disturbances M. Faye's Comet probably the same with Lexel's - Periods of other three known Acceleration in the mean Motions of Encke's and Biela's Comets ...
Ethereal Medium — Comets — Do not disturb the Solar System — Their Orbits and Disturbances M. Faye's Comet probably the same with Lexel's - Periods of other three known Acceleration in the mean Motions of Encke's and Biela's Comets ...
Page 9
... have a very small obliquity or inclination ( N. 53 ) to the plane of the ecliptic in wbich the earth moves ; and , on that account , astronomers refer their motions to this plane at a given epoch as a known and fixed position .
... have a very small obliquity or inclination ( N. 53 ) to the plane of the ecliptic in wbich the earth moves ; and , on that account , astronomers refer their motions to this plane at a given epoch as a known and fixed position .
Page 10
Its distance from the sun ( N. 56 ) must also be known ; and , for the complete determination of its elliptical motion , the nature and position of its orbit must be ascertained by observation . This depends upon seven quantities ...
Its distance from the sun ( N. 56 ) must also be known ; and , for the complete determination of its elliptical motion , the nature and position of its orbit must be ascertained by observation . This depends upon seven quantities ...
Page 20
Nothing can be known from observation , since the existence of the human race has occupied comparatively but a point in duration , while these vicissitudes embrace myriads of ages . The proof is simple and conclusive .
Nothing can be known from observation , since the existence of the human race has occupied comparatively but a point in duration , while these vicissitudes embrace myriads of ages . The proof is simple and conclusive .
Page 25
It was long known by observation that five times the mean motion of Saturn is nearly equal to twice that of Jupiter ; a relation which the sagacity of La Place perceived to be the cause of a periodic irregularity in the mean motion of ...
It was long known by observation that five times the mean motion of Saturn is nearly equal to twice that of Jupiter ; a relation which the sagacity of La Place perceived to be the cause of a periodic irregularity in the mean motion of ...
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Common terms and phrases
absorbed according action angle appears atmosphere attraction axis becomes bismuth blue bodies cause centre chemical colour comet consequently continually crystal dark depends determined diameter diminishes direction distance disturbing earth ecliptic effect electricity equal equator ether exist experiments extends extreme fall force give glass gravitation greater green heat increase instance intensity John known latitude length less light lines liquid magnetic mass matter mean measured medium metallic miles moon motion move nature nearly NOTE object observed opposite orbit particles passing periodic phenomena plane plate polarized pole position produced proportion proved quantity rays reflected refraction refrangible revolving rings rotation round satellites seen separated shows side similar solar sound space spectrum square stars substances surface temperature theory tion transmitted undulations varies vibrations visible waves whole wire