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Somewhere in the neighborhood of a hundred days, using all the acceleration that will be safe! At five gravities, reducing our present velocity of twenty-five thousand miles per second to zero will take approximately twenty-four hundred hours one hundred days! We'll have to use the gravitational attraction of that sun to help us." "We'll have to use the space control," said Arcot.
Once his grip on a hand-line slipped and he had to sustain the drag of nearly six hundred pounds by a single hand and arm. It would not be a good idea to fall at three gravities. The landing rockets roared and roared, and Joe tilted the bow down a little farther, so that the streaming flood of clouds drew nearer. Haney got to his acceleration chair. He let himself into it and his eyes closed.
But the orbits of the satellites are concentric to Jupiter, and therefore the accelerative gravities of Jupiter and of all its satellites towards the sun, at equal distances from the sun, are as their several quantities of matter; and the weights of the moon and of the earth towards the sun are either none, or accurately proportional to the masses of matter which they contain.
His profession was something imperceptibly connected with the County Grand Jury Office, and was quite over-shadowed in winter by the gravities of hunting, and in summer by the gallantries of the Militia training; for, like many of his class, he was a captain in the Militia. He was always neatly dressed; his large moustache looked as if it shared with his boots the attention of the blacking brush.
"That's the main horizontal power unit. We can develop an acceleration of ten gravities either forward or backward. In the curve of the ship, on top, sides, and bottom, there are power units for motion in the other two directions. "Most of the rest of the stuff in this section is old hat to you, though. Come on into the next room."
When we bear in mind that, in addition to these various contrasts, the planets and satellites also differ in respect to their distances from each other and their primary; in respect to the inclinations of their orbits, the inclinations of their axes, their times of rotation on their axes, their specific gravities, and their physical constitutions; we see what a high degree of heterogeneity the solar system exhibits, when compared with the almost complete homogeneity of the nebulous mass out of which it is supposed to have originated.
It didn't try to make a spiral approach as all other ships had done. It came straight up, and it started from the ground. No pushpots. Its take-off rockets were monsters. They pushed upward at ten gravities until it was out of atmosphere, and then they stepped up to fifteen. Much later, the robot turned on its side and fired orbital speed rockets to match velocity with the Platform.
Fire when ready." "Okay, Mike?" A half-second pause. "Okay!" Joe pressed the firing-button for the take-off rockets. And he was slammed back into his acceleration chair again. But this was three gravities only. Pressed heavily against the acceleration cushions, he could perform the navigation for the fleet. He did.
Now these four persons being all members of the Privy Council, and being thus engaged in close and earnest conference were, you will suppose, employed in discussing their gravities and secrets of state: no such thing; that whisper from Lord Quintown, the handsome nobleman, to Mr. St.
It is evident, however, that the gravities of the body, and of the bulk of water displaced, are very nicely balanced, and that a trifle will cause either to preponderate.
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