On the Connexion of the Physical Sciences |
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Page 31
The angle contained between the axis of the telescope and a line drawn to the true place of the star is its aberration , which varies in quantity and direction in different parts of the earth's orbit ; but , as it is only 201481 , it is ...
The angle contained between the axis of the telescope and a line drawn to the true place of the star is its aberration , which varies in quantity and direction in different parts of the earth's orbit ; but , as it is only 201481 , it is ...
Page 35
... but its absolute value also varies with her distance from the perigee ( N. 102 ) of her orbit . Ancient astronomers , who observed the moon solely with a view to the prediction of eclipses , which can only happen in conjunction and ...
... but its absolute value also varies with her distance from the perigee ( N. 102 ) of her orbit . Ancient astronomers , who observed the moon solely with a view to the prediction of eclipses , which can only happen in conjunction and ...
Page 49
... theoretically , ought to increase from the equator to the pole , as unity plus a constant quantity multiplied into the square of the sine of the latitude ( N. 127 ) . But for a spheroid in rotation the centrifugal force varies ...
... theoretically , ought to increase from the equator to the pole , as unity plus a constant quantity multiplied into the square of the sine of the latitude ( N. 127 ) . But for a spheroid in rotation the centrifugal force varies ...
Page 52
Since the parallax is equal to the radius of the earth divided by the distance of the moon , it varies with the distance of the moon from the earth under the same parallel of latitude , and proves the ellipticity of the lunar orbit .
Since the parallax is equal to the radius of the earth divided by the distance of the moon , it varies with the distance of the moon from the earth under the same parallel of latitude , and proves the ellipticity of the lunar orbit .
Page 53
... the line described by the planet in its passage over his disc appears to be nearer to his centre , or farther from it , according to the position of the observer ; so that the duration of the transit varies with the different points ...
... the line described by the planet in its passage over his disc appears to be nearer to his centre , or farther from it , according to the position of the observer ; so that the duration of the transit varies with the different points ...
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according action angle appears atmosphere attraction axis becomes bismuth bodies cause centre changes chemical colour comet consequently continually dark density depends determined diameter diminishes direction distance disturbing earth ecliptic Edition effect electricity equal equator existence experiments extends extremely fall force give glass gravitation greater heat increase influence 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 planets plate polarized pole position Post 8vo probably produced proportion proved quantity rays reflected refraction regard revolving rings rotation round satellites seen shows side solar solid sound space spectrum square stars substances surface temperature theory tion transmitted variation varies vibrations Vols waves whole wire Woodcuts
Bibliographic information
| Title | On the Connexion of the Physical Sciences |
| Author | Mary Somerville |
| Edition | 9 |
| Publisher | J. Murray, 1858 |
| Original from | National Library of the Netherlands |
| Digitized | 18 Jan 2013 |
| Length | 523 pages |
| Export Citation | BiBTeX EndNote RefMan |