 But, in the midst of all these vicissitudes, the length of the major axes and the mean motions of the planets remain permanently independent of secular changes. They are so connected by Kepler's law, of the squares of the periodic times being proportional...  On the Connexion of the Physical Sciences - Pàgina 22per Mary Somerville - 1849 - 524 pàginesVisualització completa - Sobre aquest llibre
 | William Shepherd, Jeremiah Joyce, Lant Carpenter - 1815 - 598 pàgines
...times, and of course proportional to the times of describing them. He also discovered by trials, that the cubes of the mean distances of the planets from the sun, are in the same proportion as the squares of the periodical times in which they revolve about the sun.... | |
 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford, Henry Vethake - 1832 - 624 pàgines
...possess the measure of our whole planetary system, as, according to the second • law of Kepler (qv), the cubes of the mean distances of the planets from the sun are as the squares of the periods of their revolutions (which have long been known). Therefore the... | |
 | Mary Somerville - 1831 - 720 pàgines
...before the earth's orbit became a circle. But in the midst of all these vicissitudes, the major axes and mean motions of the planets remain permanently independent...that one cannot vary without affecting the other. With the exception of these two elements, it appears, that all the bodies are in motion, and every... | |
 | Mary Somerville - 1831 - 710 pàgines
...planet and comet this force is reciprocally as the square of the distance from the sun; and, lastly, the squares of the periodic times, being proportional to the cubes of the mean distances, proves that the areas described in equal times by the radius vector of each body in the different orbits,... | |
 | Encyclopaedia Americana - 1832 - 620 pàgines
...possess the measure cf our whole planetary system, as, according to the second law of Kepler (qv), the cubes of the mean distances of the planets from the sun are as the squares of the periods of their revolutions (which have long been known). Therefore the... | |
 | Mary Somerville - 1834 - 666 pàgines
...the earth's orbit became a circle. But, in the midst of all these vicissitudes, the major axes and mean motions of the planets remain permanently independent...that one cannot vary without affecting the other. With the exception of these two elements, it appears that all the bodies are in motion, and every orbit... | |
 | Mary Somerville - 1834 - 390 pàgines
...before the earth's orbit became a circle. But in the midst of all these vicissitudes, the major axes and mean motions of the planets remain permanently independent...that one cannot vary without affecting the other. With the exception of these two elements, it appears that all the bodies are in motion, and every orbit... | |
 | Mary Somerville - 1834 - 484 pàgines
...orbit became a circle. But, in the midst of all these vicissitudes, the major axes and mean motions cf the planets remain permanently independent of secular...from the sun, that one cannot vary without affecting die other. With the exception of these two elements, it appeals that all the bodies are in motion,... | |
 | Leigh Hunt - 1834 - 972 pàgines
...which Kepler might have apprized you that, the squares of the times of the planetary revolutions are as the cubes of the mean distances of the planets from the sun. But this was not all. It was not the tone for any mere physical truth. The enunciation was that of... | |
 | Francis Lieber, Edward Wigglesworth - 1835 - 620 pàgines
...possess the measure of our whole planetary system, as, according to the second law of Kepler (qv), the cubes of the mean distances of the planets from the sun are as the squares of the periods of their revolutions (which have long been known). Therefore the... | |
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