... depends upon the velocity with which they were first propelled in space. Had that velocity been such as to make the planets move in orbits of unstable equilibrium, their mutual attractions might have changed them into parabolas, or even hyperbolas,... Mechanism of the Heavens - Page xiiby Mary Somerville - 1831 - 621 pagesFull view - About this book
 | George Taylor - 1851 - 300 pages
...distinguished authoress, as to make the planets move in orbits of unstable equilibrium, their mutual attraction might have changed them into parabolas, or even hyperbolas, so that the earth and the planets might, ages ago, have been sweeping far from our sun, through the abyss of space. But as... | |
 | George Taylor - 1851 - 302 pages
...forms and their necessary forces present. Had the velocity been such, says a distinguished authoress, as to make the planets move in orbits of unstable equilibrium, their mutual attraction might have changed them into parabolas, or even hyperbolas, so that the earth and the planets... | |
 | Mary Somerville - 1853 - 492 pages
...conic sections in which the celestial bodies move, depends upon the velocity with which they were firs* propelled in space. Had that velocity been such as to make the planets move in orbits of unstable equilibriun1 (N. 60), their mutual attractions might have changed them into parabolas, or even hyperbolas... | |
 | Archibald Tucker Ritchie - 1874 - 690 pages
...that of the sun ; for the nature of the conic sections in which the celestial bodies move depends upon the velocity with which they were first propelled...earth and planets might, ages ago, have been sweeping far from our sun through the abyss of space. But as the orbits differ very little from circles, the... | |
 | Kathryn A. Neeley, Mary Somerville - 2001 - 284 pages
...technique of presenting alternative scenarios when she discusses the velocity at which the celestial bodies "were first propelled in space." Had that velocity...earth and planets might, ages ago, have been sweeping far from our sun through the abyss of space. But as the orbits differ very little from circles, the... | |
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