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Updated: August 3, 2024
"In case you didn't notice, we're out of the atmosphere and out in space! We're headed to join the Space Platform!" The pressure of three gravities continued. Joe's chest muscles ached with the exertion of breathing over so long a period. Six gravities for fourteen seconds had been a ghastly ordeal. Three gravities for minutes built up to something nearly as bad.
The two co-existing pounds originally adjusted in relation to the specific gravities of wheat and spring-water, are now the sole remains and representatives of a fanciful theory spun in the middle ages; and the first question that occurs is, whether the pound troy, having served its purpose, might not be done away with, and the pound avoirdupois ascertained by reference to a cubic inch of distilled water.
Legitimately assuming that the outermost parts of a rotating nebulous spheroid, in its earlier stages of concentration, must be comparatively rare; and that the increasing density which the whole mass acquires as it contracts, must hold of the outermost parts as well as the rest; it is argued that the rings successively detached will be more and more dense, and will form planets of higher and higher specific gravities.
I'm afraid our run the rest of the way to Subiaco remains with me but as an after-sense of that exhilaration, in spite of our rising admirably higher, all the while, and plunging constantly deeper into splendid solitary gravities, supreme romantic solemnities and sublimities, of landscape.
They were trying the specific gravities of objects; and the devices which they employed, the mechanical shifts to which they were put, were often of the rudest kind. In these evening entertainments, the mechanical contrivances were supplied by Stephenson, whilst Wigham found the scientific rationale.
The Platform seemed to dwindle with startling suddenness. It seemed to rush away and become lost in the myriads of stars. The space tug accelerated at four gravities in the direction opposed to its orbital motion. As the acceleration built up, it dropped toward Earth and home like a tumbled stone. There was bright sunshine at the Shed, not a single cloud in all the sky.
Were there no other evidence, these mechanical arrangements would, considered in their totality, go far to establish the Nebular Hypothesis. From the mechanical arrangements of the Solar System, turn we now to its physical characters; and, first, let us consider the inferences deducible from relative specific gravities.
Hence it must be, viz, because our sisters are too much occupied with the playful things of this earth, and our brothers with its gravities, that neither party sufficiently watches the skies.
His discovery of the method of determining specific gravities by immersion in a fluid was equally memorable. He was not only the greatest mathematician of the old world, but he applied science to practical affairs, and compelled Marcellus to convert the siege of Syracuse into a blockade.
The little ship surged momentarily toward the racing monsters. And then The rockets which were supposed to let the ship down to Earth flew free flung themselves unburdened at the rockets which came with deadly intent to the meeting of the two Earth spacecraft. The landing-rockets plunged down at forty gravities or better.
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