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A body falling from an infinite distance that is, impelled only by the attraction of gravitation would strike the earth with a velocity of only six or seven miles a second, while the meteorites come at the rate of twenty to thirty miles a second, the earth's rate of revolution being nineteen miles in the same time.
They were completely screened from the fire by some buildings of the suburbs abutting upon the slope. Those in front were watching the cannon-balls which had struck the crest and were rolling as it were by mere force of gravitation down the hillside.
He walked as though the forces of gravitation were but barely sufficient to tether him down to mother earth. "And I reckon he weighs near a hundred and sixty," said Willis; a guess the store scales proved good that night, when Jan registered exactly one hundred and fifty-seven pounds, though he carried no fat, nor an ounce of any kind of waste material.
The great Emanuel Kant wrote in his younger and less timid years, "The General History of Nature and Theory of the Heavens." The great Newton had by his law of gravitation brought order into the heavens. Kant looked longingly for a greater Newton, who should find a similar unity in the animal world.
Yet this problem must be cleared up before we can arrive at any understanding of the whole subject. In all attempts at “reducing to simpler terms,” it must be borne in mind that “force” reveals its nature in ever higher stages, of which every one is new. Even cohesion cannot be reduced to terms of gravitation, nor the chemical affinities and molecular forces to something more primitive.
Then he shows that the most important scientific discoveries of modern times as of the law of gravitation by Newton, the law of the forms of crystals by Haüy, and the metamorphosis of plants by Goethe were all essentially the results of that a priori or deductive method "which, during the last two centuries, Englishmen have unwisely despised."
What I mean is I don't believe in the Newtonian theory that gravitation goes up to the moon. It does n't extend above the air." "Have you ever been up there to see?" There was an embarrassing pause, during which the visitor began to look a little sheepish. "N-no-o," he at length replied.
Mr Bentham's discovery does not, as we think we shall be able to show, approach in importance to that of gravitation, to which he compares it. At all events, Mr Bentham seems to us to act much as Sir Isaac Newton would have done if he had gone about boasting that he was the first person who taught bricklayers not to jump off scaffolds and break their legs.
"It looks like an obstacle, for Nightspore informs me that the start takes place from the top." "But your other doubts are all removed?" "So far, Krag, that I now possess an open mind. I am quite willing to see what you can do." "Nothing more is asked.... But this tower business. You know that until you are able to climb to the top you are unfit to stand the gravitation of Tormance?"
Are not all bodies inclined to obey the laws of gravitation unless they are held back by a superior force?" "Certainly." "And is it not the case that no bodies move in an upward direction unless they are impelled?" "Quite true."
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