On the Connexion of the Physical Sciencesanboco, 2016 M09 27 - 1330 pages Science, regarded as the pursuit of truth, must ever afford occupation of consummate interest, and subject of elevated meditation. The contemplation of the works of creation elevates the mind to the admiration of whatever is great and noble; accomplishing the object of all study, which, in the eloquent language of Sir James Mackintosh, "is to inspire the love of truth, of wisdom, of beauty—especially of goodness, the highest beauty—and of that supreme and eternal Mind, which contains all truth and wisdom, all beauty and goodness. By the love or delightful contemplation and pursuit of these transcendent aims, for their own sake only, the mind of man is raised from low and perishable objects, and prepared for those high destinies which are appointed for all those who are capable of them." Astronomy affords the most extensive example of the connection of the physical sciences. In it are combined the sciences of number and quantity, of rest and motion. In it we perceive the operation of a force which is mixed up with everything that exists in the heavens or on earth; which pervades every atom, rules the motions of animate and inanimate beings, and is as sensible in the descent of a rain-drop as in the falls of Niagara; in the weight of the air, as in the periods of the moon. Gravitation not only binds satellites to their planet, and planets to the sun, but it connects sun with sun throughout the wide extent of creation, and is the cause of the disturbances, as well as of the order of nature; since every tremor it excites in any one planet 2is immediately transmitted to the farthest limits of the system, in oscillations which correspond in their periods with the cause producing them, like sympathetic notes in music, or vibrations from the deep tones of an organ. The heavens afford the most sublime subject of study which can be derived from science. |
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... less than 918 years. The radial force, or that part of the disturbing force which acts in the direction of the line joining the centres of the sun and disturbed planet, has no effect on the areas, but is the cause of periodical changes ...
... less than 918 years. The radial force, or that part of the disturbing force which acts in the direction of the line joining the centres of the sun and disturbed planet, has no effect on the areas, but is the cause of periodical changes ...
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... less than the law of gravity requires, the curvature of the planet's path is less than the curvature of the ellipse. So that the planet, on leaving its perihelion, would pass through more than 180° before arriving at its aphelion, which ...
... less than the law of gravity requires, the curvature of the planet's path is less than the curvature of the ellipse. So that the planet, on leaving its perihelion, would pass through more than 180° before arriving at its aphelion, which ...
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... less than 200,610 years to perform its sidereal revolution, and 22,748 years to accomplish its tropical revolution from the disturbing action of Saturn alone. A variation in the excentricity of the disturbed planet's orbit is an ...
... less than 200,610 years to perform its sidereal revolution, and 22,748 years to accomplish its tropical revolution from the disturbing action of Saturn alone. A variation in the excentricity of the disturbed planet's orbit is an ...
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... less than it was in the age of Ptolemy. But, in the midst of all these vicissitudes, the length of the major axes and the mean motions of the planets remain permanently independent of secular changes. They are so connected by Kepler's ...
... less than it was in the age of Ptolemy. But, in the midst of all these vicissitudes, the length of the major axes and the mean motions of the planets remain permanently independent of secular changes. They are so connected by Kepler's ...
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... less than the distances of the planets from the sun, and from one another. So that the system of a planet and its satellites moves nearly as if all these bodies were united in their common centre of gravity. The action of the sun ...
... less than the distances of the planets from the sun, and from one another. So that the system of a planet and its satellites moves nearly as if all these bodies were united in their common centre of gravity. The action of the sun ...
Contents
SECTION XX | |
SECTION XXI | |
SECTION XXII | |
SECTION XXIII | |
SECTION XXIV | |
SECTION XXV | |
SECTION XXVI | |
SECTION XXVII | |
SECTION IX | |
SECTION X | |
SECTION XI | |
SECTION XII | |
SECTION XIII | |
SECTION XIV | |
SECTION XV | |
SECTION XVI | |
SECTION XVII | |
SECTION XVIII | |
SECTION XIX | |
SECTION XXVIII | |
SECTION XXIX | |
SECTION XXX | |
SECTION XXXI | |
SECTION XXXII | |
SECTION XXXIII | |
SECTION XXXIV | |
SECTION XXXV | |
SECTION XXXVI | |
SECTION XXXVII | |
NOTES | |
INDEX | |
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Common terms and phrases
absorbed action appears atmosphere attraction bodies cause centre centrifugal force chemical circular polarization colour comet compression consequently crystals dark David Brewster decrease degree density diamagnetic diameter diminishes direction disturbing earth ecliptic effect electricity equal equator ethereal medium excentricity experiments extremely Fahrenheit force glass globe gravitation greater heat hemisphere increase inequalities intensity Jupiter Jupiter’s latitude length less light lines liquid longitude luminous lunar magnetic mass meridian miles molecules moon moon’s nearly nodal lines nodes nutation observed ocean optic axis orbit oscillations parallax paramagnetic particles passing perigee perihelion periodic perpendicular phenomena planets plate polarized poles position produced proportion quantity rays reflected refraction refrangible retrograde motion revolution revolving right angles rings rotation satellites Saturn Sir John Herschel solar spectrum sound southern hemisphere space stars substances sun’s surface temperature terrestrial tourmaline transmitted undulations Uranus vapour variations velocity vibrations waves wire