On the Connexion of the Physical Sciences |
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Page 1
Thus , experience teaches that bodies fall at the surface of the earth with an accelerated velocity , and with a force proportional to their masses . By comparison , Newton proved that the force which occasions the fall of bodies at the ...
Thus , experience teaches that bodies fall at the surface of the earth with an accelerated velocity , and with a force proportional to their masses . By comparison , Newton proved that the force which occasions the fall of bodies at the ...
Page 10
... that the reciprocal attraction between each of her particles , and each of the particles in the prominent mass at the terrestrial equator , occasions considerable disturbances in the motions of both bodies : for the action of the ...
... that the reciprocal attraction between each of her particles , and each of the particles in the prominent mass at the terrestrial equator , occasions considerable disturbances in the motions of both bodies : for the action of the ...
Page 11
As the sun rotates about an axis , it seems probable , if an impulse in a contrary direction has not been given to his centre of gravity , that he moves in space , accompanied by all those bodies which compose the solar system - a ...
As the sun rotates about an axis , it seems probable , if an impulse in a contrary direction has not been given to his centre of gravity , that he moves in space , accompanied by all those bodies which compose the solar system - a ...
Page 13
as analysis ; it is , therefore , necessary to estimate the disturbing action of one planet at a time , whence the celebrated problem of the three bodies , originally applied to the moon , the earth , and the sun -namely , the masses ...
as analysis ; it is , therefore , necessary to estimate the disturbing action of one planet at a time , whence the celebrated problem of the three bodies , originally applied to the moon , the earth , and the sun -namely , the masses ...
Page 18
With the exception of these two elements , it appears that all the bodies are in motion , and every orbit in a state of perpetual change . Minute as these changes are , they might be supposed to accumulate in the course of ages ...
With the exception of these two elements , it appears that all the bodies are in motion , and every orbit in a state of perpetual change . Minute as these changes are , they might be supposed to accumulate in the course of ages ...
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Common terms and phrases
according action angle appears arising atmosphere attraction axis becomes bodies cause centre changes colours comet consequently continued currents density depends determined diameter diminishes direction distance disturbing earth ecliptic effect electricity equal equator existence experiments extent extremely fluid force give given glass gravitation greater heat height increase influence intensity kind known latitude length less light liquid magnetic mass matter mean measured meridian miles moon motion move nature nearly needle object observed occasions ocean opposite orbit particles passing period phenomena plane plate polarized poles position probably produce proved quantity rays reflected refraction remain rest result revolve rings rotation round satellites seen separated side similar solar solid sound space square stars substances surface temperature terrestrial theory tides tion transmitted undulations variation varies vibrations waves whole wire
Popular passages
Page 29 - ... that the mean longitude of the first satellite, minus three times that of the second, plus twice that of the third, is always equal to two right angles.
Page 20 - In song and dance about the sacred Hill — Mystical dance, which yonder starry sphere Of planets and of fixed in all her wheels Resembles nearest; mazes intricate, Eccentric, intervolved, yet regular Then most when most irregular they seem; And in their motions harmony divine So smooths her charming tones that God's own ear Listens delighted.
Page 21 - that must render the name for ever memorable in science, and revered by those who delight in the contemplation of whatever is excellent and sublime." After Newton's discovery of the mechanical laws of the elliptical orbits of the planets, La Grange's discovery of their periodical inequalities is, without doubt, the noblest truth in physical astronomy ; and, in respect of the doctrine of final causes, it may be regarded as the greatest of all.
Page 386 - Jupiter ; it then gradually diminished in splendor, and having exhibited all the variety of tints that indicate the changes of combustion, vanished sixteen months after its discovery, without altering its position. It is impossible to imagine anything more tremendous than a conflagration that could be visible at such a distance.
Page 110 - D'Alembert, was the Precession of the equinoxes and the Nutation of the earth's axis, according to the theory of gravitation.
Page 310 - ... that is, in the plane which passes through the north and south magnetic poles. There are places where the magnetic meridian coincides with the terrestrial meridian ; in these a magnetic needle freely suspended, points to the true north, but if it be carried successively to different places on the earth's surface, its direction will deviate sometimes to the east and sometimes to the west of north. Lines drawn on the globe through all the places where the needle points due north and south, are...
Page 357 - Hence arises still further confirmation, if any were required, of the identity of common and voltaic electricity, and that the differences of intensity and quantity are quite sufficient to account for what were supposed to be their distinctive qualities.
Page 175 - ... follows, that the orange and green rays of the spectrum, though they cannot be decomposed by prismatic refraction, can be decomposed by absorption, and actually consist of two different colours possessing the same degree of refrangibility.
Page 51 - ... solid parts, by their cohesion, nearly destroy that part of the centrifugal force which gives the particles a tendency to accumulate at the equator, though not altogether ; otherwise the sea, by the superior mobility of its particles, would flow towards the equator and leave the poles dry. Besides, it is well known, that the continents at the equator are more elevated than they are in higher latitudes. It is also necessary for the equilibrium of the ocean, that its density should be less than...
Bibliographic information
| Title | On the Connexion of the Physical Sciences |
| Author | Mary Somerville |
| Publisher | J. Murray, 1834 |
| Original from | the New York Public Library |
| Digitized | 26 Jun 2006 |
| Length | 458 pages |
| Export Citation | BiBTeX EndNote RefMan |