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Updated: June 16, 2025
At that hour, I think, the Colonel's Wife realized a little of the restless suspicions she had injected into old Laplace's mind, a little of poor Miss Haughtrey's misery, and some of the canker that ate into Buxton's heart as he watched his wife dying before his eyes. The Colonel stammered and tried to explain. Then he remembered that his watch had disappeared; and the mystery grew greater.
Laplace's hypothesis can certainly find no standing ground either in the Orion Nebula or in those of a spiral configuration, whatever may be its situation with respect to the grand Nebula of Andromeda, or the ``ring'' and ``planetary'' nebulæ. Some other hypothesis more consonant with the appearances must be found.
But recent science raises many objections to the details, if it supplies some degree of confirmation to the fundamental idea of Laplace's cosmogony.
That there are unconquered difficulties in Laplace's hypothesis no one would deny, but in simplicity of conception it is incomparably more satisfactory, and with proper modifications could probably be made more consonant with existing facts in our solar system than that which is offered to replace it.
On Laplace's view, no satellite can revolve in a shorter time than its primary rotates; for in its period of circulation survives the period of rotation of the parent mass which filled the sphere of its orbit at the time of giving it birth. And rotation quickens as contraction goes on; therefore, the older time of axial rotation should invariably be the longer.
I read with much interest Laplace's report to the Senate, and must confess I was very glad to see the Gregorian calendar again acknowledged by law, as it had already been acknowledged in fact. Frenchmen in foreign countries experienced particular inconvenience from the adoption of a system different from all the rest of the world.
The players were still at their game, and the little copper discs they used for throwing kept rolling close to his feet, and the canteen-woman passed backwards and forwards with her little barrel. "See this, Servien," he said presently; "in these lines Virgil, or rather the poet of the Alexandrine age who was his model, has anticipated Laplace's great hypothesis and Charles Lyell's theories.
Hence the backward axial movements of Uranus and Neptune may very well be a survival, due to the inefficiency of solar tides at their great distance, of a state of things originally prevailing universally throughout the system. The general outcome of Mr. Darwin's researches has been to leave Laplace's cosmogony untouched.
After an attack of illness, he was moved for change to Dublin, and in May, 1822, we find him reading the differential calculus and Laplace's "Mecanique Celeste." He criticises an important part of Laplace's work relative to the demonstration of the parallelogram of forces. In this same year appeared the first gushes of those poems which afterwards flowed in torrents.
This leads to the condensation of matter into suns and their planets, and the geological evolution of the earth, for example. Laplace's nebular hypothesis is an attempt to give an adequate statement of the cosmic phase of evolution. While this hypothesis has been much criticized of late, in its essentials it seems to stand.
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