Pronunciation of the English word gravitation.
# | Sentence | |
---|---|---|
1. | In general the physical and mental form of conscious beings is an expression of the character of the planet on which they live. On certain very large and aqueous planets, for instance, we found that civilization had been achieved by marine organisms. On these huge globes no land-dwellers as large as a man could possibly thrive, for gravitation would have nailed them to the ground. But in the water there was no such limitation to bulk. One peculiarity of these big worlds was that, owing to the crushing action of gravitation, there were seldom any great elevations and depressions in their surface. Thus they were usually covered by a shallow ocean, broken here and there by archipelagos of small, low islands. | |
2. | We learned that Newton discovered the law of gravitation. | |
3. | Einstein described quantum entanglement as "spooky action at a distance." So, before Einstein's own Theory of General Relativity, might Newton's theory of gravitation have been described. | |
4. | Are you sure we can move freely in Space? Right and left we can go, backward and forward freely enough, and men always have done so. I admit we move freely in two dimensions. But how about up and down? Gravitation limits us there. | |
5. | In 1916 Einstein published his general theory of relativity. This theory linked gravitation, acceleration and the four dimensional space-time. | |
6. | As the years progressed, Newton completed his work on universal gravitation, diffraction of light, centrifugal force, centripetal force, inverse-square law, bodies in motion and the variations in tides due to gravity. | |
7. | I was sitting in a chair in the patent office at Bern when all of sudden a thought occurred to me: If a person falls freely he will not feel his own weight. I was startled. This simple thought made a deep impression on me. It impelled me toward a theory of gravitation. | |
8. | A very different and fairly common quasi-human kind was sometimes produced by planets rather larger than the Earth. Owing to the greater strength of gravitation, there would first appear, in place of the familiar quadruped, a six-legged type. This would proliferate into little sextuped burrowers, swift and elegant sextuped grazers, a sextuped mammoth, complete with tusks, and many kinds of sextuped carnivora. Man in these worlds sprang usually from some small opposum-like creature which had come to use the first of its three pairs of limbs for nest-building or for climbing. In time, the forepart of its body thus became erect, and it gradually assumed a form not unlike that of a quadruped with a human torso in place of a neck. In fact it became a centaur, with four legs and two capable arms. It was very strange to find oneself in a world in which all the amenities and conveniences of civilization were fashioned to suit men of this form. | |
9. | Sometimes in the course of our adventure we came upon worlds inhabited by intelligent beings, whose developed personality was an expression not of the single individual organism but of a group of organisms. In most cases this state of affairs had arisen through the necessity of combining intelligence with lightness of the individual body. A large planet, rather close to its sun, or swayed by a very large satellite, would be swept by great ocean tides. Vast areas of its surface would be periodically submerged and exposed. In such a world flight was very desirable, but owing to the strength of gravitation only a small creature, a relatively small mass of molecules, could fly. A brain large enough for complex "human" activity could not have been lifted. In such worlds the organic basis of intelligence was often a swarm of avian creatures no bigger than sparrows. A host of individual bodies were possessed together by a single individual mind of human rank. The body of this mind was multiple, but the mind itself was almost as firmly knit as the mind of a man. As flocks of dunlin or redshank stream and wheel and soar and quiver over our estuaries, so above the great tide-flooded cultivated regions of these worlds the animated clouds of avians maneuvered, each cloud a single center of consciousness. |