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Updated: May 24, 2025
Recollect the force which, in the new star in Perseus, drove masses of hydrogen for millions of miles at a speed of a thousand miles a second. These denser nuclei or masses would, when the eruption was over, begin to attract to themselves all the lighter nebulous material within their sphere of gravitational influence.
Thermal expansion was thus attributed to an increase in the average distance between the assumed minute particles, caused by an increase in their rate of movement; the liquid state was held to differ from the solid, and similarly the gaseous from the liquid, by the interspaces between the particles becoming relatively so great that the gravitational pull between them became too weak to hold them together.
Huge balls of lead, as used by Cavendish, produce by their gravitational effect a minute rotation of a delicately suspended bar, carrying smaller balls at its extremities. But no such feeble means sufficed for Newton's purpose.
It has here, practically the same fault which the artificial matter had on your world. "As I see it, the ray is actually a directed gravitational field. "Now here is one thing that makes it more interesting, and more useful. It seems to defy the laws of mechanics. It acts, but there is no apparent reaction! A small ship can swing a world!
The Sun was far from the point that it had occupied when the travelers had left it, billions on billions of miles further on its journey around the gravitational center of our galactic universe, and in the eighty millenniums that they must wait, it would go far.
Clinging like leeches to the wall, the two men resisted the warped gravitational drag that would have flung them down upon their waiting enemies below. They seemed to be hanging in a well. Sime had a confused impression of piled-up bodies hurtling down down. Thereafter everything was normal again, and they were running down the normal steps.
It is true, the sun's gravitational field does decrease, by a minute amount, despite the fact that our sun loses a thousand million tons of matter every four minutes. The percentage change is minute, but the energy released is immeasurable. "But, I am going to invent a new power unit, Afthen. I will call it the 'sol, the power of a sun. One sol is the rating of our sun.
The assemblage of all the elements of impetus relating E to the assemblage of event-particles in the neighbourhood of E expresses the character of the field of activity in the neighbourhood of E. Where I differ from Einstein is that he conceives this quantity which I call the impetus as merely expressing the characters of the space and time to be adopted and thus ends by talking of the gravitational field expressing a curvature in the space-time manifold.
He talked with an air of being extremely lucid about the "ether" and "tubes of force," and "gravitational potential," and things like that, and I sat in my other folding-chair and said, "Yes," "Go on," "I follow you," to keep him going. It was tremendously difficult stuff, but I do not think he ever suspected how much I did not understand him.
The greater part of the structure was the brain, sending enormous nerves to the eyes, ear, and tactile tentacles. Besides this were the bulky lungs, into which the mouth opened, and the heart and its vessels. The pulmonary distress caused by the denser atmosphere and greater gravitational attraction was only too evident in the convulsive movements of the outer skin.
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