On the Connexion of the Physical Sciences |
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Page 5
... mass of the hollow sphere , or the whole matter it contains , were collected in its centre . The same is , therefore , true of a solid sphere , which may be supposed to consist of an infinite number of concentric hollow spheres .
... mass of the hollow sphere , or the whole matter it contains , were collected in its centre . The same is , therefore , true of a solid sphere , which may be supposed to consist of an infinite number of concentric hollow spheres .
Page 9
... till their increase in number balanced the centrifugal force by their attraction : consequently , the sphere would become an oblate spheroid ; and a fluid partially or entirely covering a solid , as the ocean and atmosphere cover ...
... till their increase in number balanced the centrifugal force by their attraction : consequently , the sphere would become an oblate spheroid ; and a fluid partially or entirely covering a solid , as the ocean and atmosphere cover ...
Page 51
The compression is still less when the mass is considered to be , as it actually is , a solid nucleus , decreasing regularly in density from the centre to the surface , and partially covered by the ocean , because the solid parts ...
The compression is still less when the mass is considered to be , as it actually is , a solid nucleus , decreasing regularly in density from the centre to the surface , and partially covered by the ocean , because the solid parts ...
Page 53
This , indeed , is assuming the earth to be an ellipsoid of revolution , but the actual measurement of the globe will show how far it corresponds with that solid in figure and constitution . The courses of the great rivers , which are ...
This , indeed , is assuming the earth to be an ellipsoid of revolution , but the actual measurement of the globe will show how far it corresponds with that solid in figure and constitution . The courses of the great rivers , which are ...
Page 76
The rings of Saturn must therefore be irregular solids of unequal breadth in different parts of the circumference , so that their centres of gravity do not coincide with the centres of their figures . Professor Struve has also ...
The rings of Saturn must therefore be irregular solids of unequal breadth in different parts of the circumference , so that their centres of gravity do not coincide with the centres of their figures . Professor Struve has also ...
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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 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 |