The Connection of the Physical SciencesKey and Biddle, 1834 - 356 pages |
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Page 9
... round the sun ; and later observations show that comets also move in conic sections : it conse quently follows that the sun attracts all the planets and comets inversely as the square of their distances from his PHYSICAL SCIENCES .
... round the sun ; and later observations show that comets also move in conic sections : it conse quently follows that the sun attracts all the planets and comets inversely as the square of their distances from his PHYSICAL SCIENCES .
Page 10
... round the sun , are proportional to the cubes of their mean distances from his centre : whence it follows that the intensity of gravitation of all the bodies towards the sun is the same at equal distances ; consequently grav- itation is ...
... round the sun , are proportional to the cubes of their mean distances from his centre : whence it follows that the intensity of gravitation of all the bodies towards the sun is the same at equal distances ; consequently grav- itation is ...
Page 15
... round the sun at its mean distance , the motion would be uniform , and the periodic time unaltered , because the planet would arrive at the apsides or extremi- ties of the major axis at the same instant , and would have the same ...
... round the sun at its mean distance , the motion would be uniform , and the periodic time unaltered , because the planet would arrive at the apsides or extremi- ties of the major axis at the same instant , and would have the same ...
Page 33
Mary Somerville. modern observations , shows that the moon performs her revolution round the earth more rapidly and in a shorter time now , than she did formerly ; and that the accelera- tion in her mean motion has been increasing from ...
Mary Somerville. modern observations , shows that the moon performs her revolution round the earth more rapidly and in a shorter time now , than she did formerly ; and that the accelera- tion in her mean motion has been increasing from ...
Page 36
... round , and her inequalities not only determine the form , but the internal structure of our planet ; results of analy- sis which could not have been anticipated . Similar ine- qualities in the motions of Jupiter's satellites prove that ...
... round , and her inequalities not only determine the form , but the internal structure of our planet ; results of analy- sis which could not have been anticipated . Similar ine- qualities in the motions of Jupiter's satellites prove that ...
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Common terms and phrases
action appears astronomers atmosphere attraction caloric cause celestial bodies centre centrifugal force chemical decomposition colors comet compression consequently degree density diameter diminishes direction disturbing earth ecliptic effect electric currents equal equator equilibrium equinox ether extremely fluid force galvanometer glass globe gravitation heat Herschel increase inequalities intensity Jupiter Key & Biddle latent heat latitude length liquid longitude lunar magnetic major axis mass mean motion meridian miles moon nearly needle nodes nutation observed ocean opposite optic axis orbit oscillations parallax particles passing perigee perihelion period perpendicular phenomena plane plate poles position produce proved quantity ray of light reflected refraction retrograde motion revolution revolve right angles rings rotation satellites sensible 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 20 - That day, as other solemn days, they spent 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, Eccentrick, 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 316 - Bacon, that the words of prophecy are to be interpreted as the words of one 'with whom a thousand years are as one day, and one day as a thousand years.
Page 10 - Kepler also deduced from observation, that the squares of the periodic times of the planets, or the times of their revolutions round the sun, are proportional to the cubes of their mean distances from...
Page 28 - His true position is in the diagonal of the parallelogram, whose sides are in the ratio of the velocity of light to the velocity of the earth in its orbit, which is as 190000 to 19.
Page 298 - Jupiter ; it then gradually diminished in splendour, 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 296 - The distance of the fixed stars is too great to admit of their exhibiting a sensible disc ; but, in all probability, they are spherical, and must certainly be so if gravitation pervades all space, which it may be presumed to do, since Sir John Herschel has shown that it extends to the binary systems of stars.
Page 318 - These formulae, emblematic of Omniscience, condense into a few symbols the immutable laws of the universe. This mighty instrument of human power itself originates in the primitive constitution of the human mind, and rests upon a few fundamental axioms, which have eternally existed in Him who implanted them in the breast of man when He created him after His own image.