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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... angle of 1918ʺ·1. That of the earth would appear under an angle of 6908ʺ·3. So that the length of the shadow is at least three times and a half greater than the distance of the moon from the earth, and the breadth of the shadow, where ...
... angle of 1918ʺ·1. That of the earth would appear under an angle of 6908ʺ·3. So that the length of the shadow is at least three times and a half greater than the distance of the moon from the earth, and the breadth of the shadow, where ...
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... angles which the visual rays from the object form with it are measured; their sum subtracted from two right angles gives the angle opposite the base; therefore, by trigonometry, all the angles and sides of the triangle may be computed ...
... angles which the visual rays from the object form with it are measured; their sum subtracted from two right angles gives the angle opposite the base; therefore, by trigonometry, all the angles and sides of the triangle may be computed ...
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... angle contained between the verticals at the extremities of the arc. This would be easily accomplished were the ... angles of which are either measured or computed, so that the length of the arc is ascertained with much laborious ...
... angle contained between the verticals at the extremities of the arc. This would be easily accomplished were the ... angles of which are either measured or computed, so that the length of the arc is ascertained with much laborious ...
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... angle at the moon can be measured, all the angles and one side are given; whence the distance of the moon from the centre of the earth may be computed. The parallax of an object may be found, if two observers under the same meridian ...
... angle at the moon can be measured, all the angles and one side are given; whence the distance of the moon from the centre of the earth may be computed. The parallax of an object may be found, if two observers under the same meridian ...
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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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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