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So there you are, all set up." "Rig your hub and guy wires," old Paul carried on, cheerfully. "Attach your sun-powered ionic drive, set up your air-restorer, spin your vehicle for centrifuge-gravity, and you're ready to move out of orbit." They laughed, because getting into space wasn't as easy as they made it sound.
"You can't do much without an Ephemeris, I should think. It's a good thing you kept the chronometers going. You know the I-P time, day, and dates, anyway." "I'll have to do without some things, that's all," and the man stared absently at the steel wall. "I remember something about its orbit, since it is one thing that all I-P vessels have to steer clear of.
He was therefore racking his recollection to discover if everything had been arranged to meet the Colonel's wishes and instructions, and, under this uncertainty of mind, he traversed the house more than once from the garret to the stables. Mrs. Mac-Morlan revolved in a lesser orbit, comprehending the dining-parlour, housekeeper's room, and kitchen.
The left forearm and hand were wanting, and the right was imperfect; the lower limbs were well preserved even to the toe-nails. No. 3, also of large size, resembled No. 2; the upper limbs were complete, and the lower wanted only the toes of the left foot. The lower jaw was absent, and the upper had no teeth. An oval depression, about an inch in its greater diameter, lay above the right orbit.
From taking exact measurements of their paths in the sky an astronomer computed they were really travelling round the sun in a lengthened orbit, an ellipse more like a comet's orbit than that of a planet. But next came the puzzling question, Why did the earth apparently hit them every year to some extent, and once in thirty-three years seem to run right into the middle of them?
He had already proved the regression of the nodes of a satellite moving in an orbit inclined to the ecliptic. He now said that the nodes of a ring of satellites revolving round the earth's equator would consequently all regress. And if joined into a solid ring its node would regress; and it would do so, only more slowly, if encumbered by the spherical part of the earth's mass.
Carapace convex on the sides, rather rugose on the sides behind, the front only slightly produced and edged with a toothed raised margin not reaching beyond the front edge of the lower orbit, and with a very short ridge at the middle of each orbit behind; the hands compressed, rather rugose, edge thick and toothed: wrist with four or five conical spines on the inner side, the front the largest: the central caudal lobe, broad, continuous, calcareous to the tip, lateral lobes, with a very slight central keel; the sides of the second abdominal rings spinose.
Hence these almost infinitely numerous particles of planet-spray, as we might call it, as well as those formed by the condensation of the metallic vapours accompanying them, would forthwith begin to part company: some going rapidly in advance, and others falling behind; until the stream of them, perpetually elongating, formed an orbit round the Sun, or rather an assemblage of innumerable orbits, separating widely at aphelion and perihelion, but approximating midway, where they might fall within a space of, say, some two millions of miles, as do the orbits of the November meteors.
And in case its influence reaches so far, is it not very probable that this power retains it in its orbit, and determines its motion? All, therefore, that remains is, to examine how far a heavy body, which should fall upon the earth from a moderate height, would go; and how far in the same time, a body which should fall from the orbit of the moon, would descend.
Steering a calculated course by the stars, we reached the orbit of Venus, and travelled along it in advance of the planet with a velocity rather less than her own, so as to allow her to overtake us. Some notion of the eagerness with which we scanned her approach may be gathered by imagining the moon to fall towards the earth.
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