Kosmos, Entwurf einer physischen Weltbeschreibung

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Seite 35 - 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.
Seite 35 - 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.
Seite 214 - 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.
Seite 58 - By their vivifying action vegetables are enabled to draw support from inorganic matter, and become in their turn the support of animals and...
Seite 566 - 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.
Seite 58 - ... of those great deposits of dynamical efficiency which are laid up for human use in our coal strata. By them the waters of the sea are made to circulate in vapour through the air, and irrigate the land, producing springs and rivers.
Seite 548 - ... privés à la fois de la lumière du Soleil et de celle de la Lune. Pour y parvenir, il eût suffi de mettre à l'origine la Lune en opposition avec le Soleil dans le plan même de l'écliptique, à une distance...
Seite 549 - ... 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.
Seite 125 - Il résulte de ces considérations que l'explication des scintillations ne peut être rattachée qu'aux phénomènes des interférences lumineuses. Les rayons des étoiles, après avoir traversé une atmosphère où il existe des couches inégalement chaudes, inégalement denses, inégalement humides, vont se réunir au foyer d'une lentille, pour y former des images d'intensité et de couleurs perpétuellement changeantes, c'est-à-dire des images telles que la scintillation les présente.
Seite 360 - ... 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.

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