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In order to form some estimate of the degree of its diminution, he considered that, if the moon be retained in her orbit by the force of gravity, the primary planets must also be carried round the sun by the same power; and by comparing the periods of the different planets with their distances from the sun he found that, if they were retained in their orbits by any power like gravity, its force must decrease in the duplicate proportion, or as the squares of their distances from the sun.
This theory, which is due to Olbers, begins with the startling assumption that a planet, perhaps as large as Mars, formerly revolving in an orbit situated between the orbits of Mars and Jupiter, was destroyed by an explosion!
The three years since the celebration of the Centenary have been characterized by a simultaneous process of internal consolidation and steady enlargement of the orbit of a fast-evolving Administrative Order.
Ben, who alone could have thrown a light upon the matter, had always been comparatively a stranger at Hurstley; he was no native of the place, and had no ties there beyond wire and whip-cord: he would appear in that locality now and then in his eccentric orbit, like a comet, and, soon departing thence, would take away Tom as his tail; but even when there, he was mainly a night-prowler, seldom seen by day, and so little versed in village lore, so rarely mingling with its natives, that neither Jennings nor Burke knew one another by sight.
The apergic force must make up for this loss of ground, while driving me in a direction, so to speak, at right angles with that of the orbit, or along its radius, straight outward from the Sun, forty odd millions of miles in the same time. If I succeeded in this, I should reach the orbit of Mars at the point and at the moment of opposition, and should attain Mars himself.
Our opportunities for the observation of Mars vary very greatly, for as the earth's orbit lies inside that of Mars, we can best see him when we are between him and the sun.
When the mass of this central body has grown so great that the velocity with which it draws the particles to itself with great distances is bent sideways by the feeble degree of repulsion with which they impede one another, and when it issues in lateral movements which are capable by means of the centrifugal force of encompassing the central body in an orbit, then there are produced whirls or vortices of particles, each of which by itself describes a curved line by the composition of the attracting force and the force of revolution that had been bent sideways.
Anterior legs two and a half times as long as the Carapace, measuring it from spine to spine, the arm long and triangular, the upper portion more or less thickly covered with small papillae, and having a nearly obliterated spine about the middle; the wrist smooth, roundish, with a large blunt tooth on the inside; hands somewhat flattened, widest at the base of the claws, with a broad ridge on the inside, the edge of it rough with small papillae; the upper edge of hand rough with small papillae; the claws lap over each other at the tips, and are irregularly toothed on the inside; the fixed claw of the right hand bent at the base, so as to leave a considerable space when the other is closed upon it; upper part of arm, hand, and movable claw pretty thickly spotted with red, epistome orbits and greater part of the upper surface of carapace spotted with red, sides and hind part of carapace white; upper edge of the orbit covered with small papillae; a tolerably prominent ridge extends across the carapace before the middle.
As it now appears that the solar disturbance is on the whole declining, it follows that the orbit of the moon, which has to be adjusted relatively to the average value of the solar disturbance, must also be gradually declining.
And you'll want it to stay out of the way, where anybody can know it is at any time of the day or night without having to calculate anything. "So you'll put it out in orbit so it will revolve around Weald in exactly one day, neither more nor less, and you'll put it above the equator.
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