The Connection of the Physical SciencesKey and Biddle, 1834 - 356 pages |
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Page 46
... latitude of its extreme points , and then measuring the distance between them in feet or fathoms : the distance thus determined on the surface of the earth , divided by the degrees and parts of a degree contained in the difference of ...
... latitude of its extreme points , and then measuring the distance between them in feet or fathoms : the distance thus determined on the surface of the earth , divided by the degrees and parts of a degree contained in the difference of ...
Page 48
... latitude ; but for a spheroid in rotation , the centrifugal force varies , by the laws of mechanics , as the square of the sine of the lati- tude , from the equator , where it is greatest , to the pole , where it vanishes ; and as it ...
... latitude ; but for a spheroid in rotation , the centrifugal force varies , by the laws of mechanics , as the square of the sine of the lati- tude , from the equator , where it is greatest , to the pole , where it vanishes ; and as it ...
Page 49
... latitude . 1 From the mean of these it appears that the whole de- crease of gravitation from the poles to the equator is 0.001457 , which subtracted from , shows that the com- pression of the terrestrial spheroid is about 292-90 , which ...
... latitude . 1 From the mean of these it appears that the whole de- crease of gravitation from the poles to the equator is 0.001457 , which subtracted from , shows that the com- pression of the terrestrial spheroid is about 292-90 , which ...
Page 50
... latitude proves the strata to be elliptical and symmetrically disposed round the centre of gravity of the earth , which affords a strong presumption in favor of its original fluidity . It is re- markable how little influence the sea has ...
... latitude proves the strata to be elliptical and symmetrically disposed round the centre of gravity of the earth , which affords a strong presumption in favor of its original fluidity . It is re- markable how little influence the sea has ...
Page 51
... latitude ; and repeating the experiments on his return to Europe , he found the seconds pendulum at Paris to be more than the twelfth of an inch longer than at Cayenne . The form and size of the earth being determined , it furnishes a ...
... latitude ; and repeating the experiments on his return to Europe , he found the seconds pendulum at Paris to be more than the twelfth of an inch longer than at Cayenne . The form and size of the earth being determined , it furnishes a ...
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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.