On the Connexion of the Physical SciencesJ. Murray, 1834 - 458 pages |
From inside the book
Page 27
... influence of Jupiter's compression , and they have a slow motion corresponding to secular varia- tions in the planes of Jupiter's orbit and equator . The satellites are not only subject to periodic and secular inequalities from their ...
... influence of Jupiter's compression , and they have a slow motion corresponding to secular varia- tions in the planes of Jupiter's orbit and equator . The satellites are not only subject to periodic and secular inequalities from their ...
Page 29
... influence on their whole theory . The satellites move so nearly in the plane of Jupiter's equator , which has a very small incli- nation to his orbit , that they are frequently eclipsed by the shadow of the planet . The eclipses take ...
... influence on their whole theory . The satellites move so nearly in the plane of Jupiter's equator , which has a very small incli- nation to his orbit , that they are frequently eclipsed by the shadow of the planet . The eclipses take ...
Page 31
... influence all the beauties of the creation would have been to us a blank . It is observed , that those eclipses of the first satellite , which happen when Jupiter is near conjunction , are later by 16m 26 than those which take place ...
... influence all the beauties of the creation would have been to us a blank . It is observed , that those eclipses of the first satellite , which happen when Jupiter is near conjunction , are later by 16m 26 than those which take place ...
Page 37
... medium pervading space , and at another to the successive transmission of the gravitating force ; but as La Place proved that neither of these causes , even if they exist , have any influence on the PHYSICAL SCIENCES . 37.
... medium pervading space , and at another to the successive transmission of the gravitating force ; but as La Place proved that neither of these causes , even if they exist , have any influence on the PHYSICAL SCIENCES . 37.
Page 38
Mary Somerville. even if they exist , have any influence on the motions of the lunar perigee or nodes , they could not affect the mean motion ; a variation in the mean motion from such causes being inseparably connected with variations ...
Mary Somerville. even if they exist , have any influence on the motions of the lunar perigee or nodes , they could not affect the mean motion ; a variation in the mean motion from such causes being inseparably connected with variations ...
Other editions - View all
Common terms and phrases
action appears atmosphere attraction caloric cause celestial bodies centre centrifugal force chemical decomposition colours comet compression consequently degree density diameter diminishes direction distance disturbing earth ecliptic effect electric currents equal equator equilibrium equinox ether excentricity extremely fluid force galvanometer glass globe gravitation heat increase induction inequalities intensity Jupiter latent heat latitude length liquid longitude lunar magnetic major axis mass mean motion meridian miles moon nearly nebulæ needle nodes nutation observed occasions ocean opposite optic optic axis orbit oscillations parallax particles passing perigee perihelion period perpendicular phenomena plane plate poles position produce proved quantity ray of light reflected refraction revolution revolve right angles rings rotation satellites Saturn secular Sir Edward Parry solar sound space spheroid substances sun and moon sun's surface temperature terrestrial theory tides tion tourmaline transmitted tricity undulations variation velocity vibrations voltaic waves whence 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...