Kosmos: Entwurf einer physischen Weltbeschreibung, Tom 3

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Strona 33 - But to derive two or three general principles of motion from phaenomena, and afterwards to tell us how the properties and actions of all corporeal things follow from those manifest principles, would be a very great step in philosophy, though the causes of those principles were not yet discovered. And therefore I scruple not to propose the principles of motion above mentioned, they being of very general extent, and leave their causes to be found out.
Strona 33 - How these attractions may be performed, I do not here consider. What I call 'attraction' may be performed by impulse, or by some other means unknown to me. I use that word here to signify only in general any force by which bodies tend toward one another, whatsoever be the cause.
Strona 358 - ... we could plainly see that all about the trapezium is a mass of stars; the rest of the nebula also abounding with stars and exhibiting the characteristics of resolvability strongly marked.
Strona 212 - This remarkable belt has maintained, from the earliest ages, the same relative situation among the stars; and, when examined through powerful telescopes, is found (wonderful to relate!) to consist entirely of stars scattered by millions, like glittering dust, on the black ground of the general heavens.
Strona 554 - Verrier, and not with the intention of interfering with his just claims to the honours of the discovery ; for there is no doubt that his researches were first published to the world, and led to the actual discovery of the planet by Dr. Galle, so that the facts stated above cannot detract, in the slightest degree, from the credit due to M. Le Verrier.
Strona 56 - By their vivifying action vegetables are enabled to draw support from inorganic matter, and become in their turn the support of animals and...
Strona 115 - ... we have ourselves heard it stated by a celebrated optician, that the earliest circumstance which drew his attention to astronomy was the regular appearance, at a certain hour, for several successive days, of a considerable star, through the shaft of a chimney.
Strona 58 - Throughout by far the larger portion of the extent of the Milk-y Way in both hemispheres, the general blackness of the ground of the heavens on which its stars are projected, and the absence of that innumerable multitude and excessive crowding of the smallest visible magnitudes, and of glare produced by the aggregate light of multitudes too small to affect the eye singly, which the contrary supposition would appear to necessitate, must, we think, be considered unequivocal...
Strona 541 - On conçoit que la vivacité de la lumière rouge ne dépend pas uniquement de l'état de l'atmosphère, qui réfracte , plus ou moins affaiblis , les rayons solaires , en les infléchissant dans le cône d'ombre, mais qu'elle est modifiée surtout par la transparence variable de la partie de l'atmosphère à travers laquelle nous apercevons la Lune éclipsée. Sous les Tropiques, une grande sérénité du Ciel, une dissémination uniforme des vapeurs, diminuent l'extinction de la lumière que le...
Strona 547 - ... proportionnelles à leurs distances à cet astre. Alors , la lune sans cesse en opposition au soleil, eût décrit autour de lui , une ellipse semblable à celle de la terre ; ces deux astres se seraient succédés l'un à l'autre sur l'horizon ; et comme à cette distance , la lune n'eût point été éclipsée , sa lumière aurait constamment remplacé celle du soleil.

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