The World of CometsS. Low, Marston, Searle & Rivington, 1877 - 548 síður |
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Aðrar útgáfur - View all
Common terms and phrases
according action amongst ancient aphelion apparition Arago astronomers atmosphere axis believe Biela's comet bolides bright bright bands brilliant calculated cause celestial bodies century Coggia's comet cometary orbits cometary tails curve described diameter direction diurnal motion Donati's comet earth eccentricity elliptic orbit Encke Encke's comet Ephorus epoch fact Faye globe gravitation Halley Halley's comet heat heavens hyperbolic hypothesis ideas inclination influence John Herschel July Jupiter Kepler law of Kepler laws less light longitude luminous mass matter mean distance meteors moon motion move movement Myndus nearly nebulosity Newton node November nucleus number of comets observed opinion parabolic orbit passed perihelion distance perihelion passage periodical comets perturbations phenomena physical Pingré planetary planets portion position prediction presage rays regarded region remarkable repulsive force retrograde revolution SECTION seen Seneca solar system space stars supposed telescope theory tion velocity visible whilst Winnecke Yvon Villarceau
Vinsælir kaflar
Síða 479 - We could tell, for example, the number of degrees which this amount of heat would impart to a globe of water equal to the earth in size. Mayer and...
Síða 512 - A combustion irresistible, all devouring, omni-prevalent, immediate ; — the entire fulfilment, in all their minute and terrible details, of the fiery and horror-inspiring denunciations of the prophecies of the Holy Book. ' Why need I paint, Charmion, the now disenchained frenzy of mankind ? That tenuity in the comet which had previously inspired us with hope, was now the source of the bitterness of despair. In its impalpable gaseous character we clearly perceived the consummation of Fate. Meantime...
Síða 26 - So spake the grisly terror, and in shape, So speaking: and so threatening, grew tenfold More dreadful and deform : on the other side, Incensed with indignation, Satan stood Unterrified, and like a comet burned, That fires the length of Ophiuchus huge In the arctic sky, and from his horrid hair Shakes pestilence and war.
Síða 265 - I could only get four comparisons with an anonymous star, it had moved forward 2"~5 in four minutes, and that settled its being the right object. I recorded it as " Circular; bright, with a decided nucleus, but no tail, and about 45
Síða 102 - Wherefore if according to what we have already said it should return again about the year 1758, candid posterity will not refuse to acknowledge that this was first discovered by an Englishman.
Síða 12 - Seneca also expressed the opinion that some comets portend mischief: ' Some comets,' he said, 'are very cruel and portend the worst misfortunes ; they bring with them and leave behind them the seeds of blood and slaughter.
Síða 265 - Just about 17|h. mean time a brief blue space enabled me to find Biela, and though I could only get four comparisons with an anonymous star, it had moved forward 2.5 s.
Síða 457 - Je viens vous annoncer une grande nouvelle. Nous l'avons en dormant, Madame, échappé belle : Un monde près de nous a passé tout du long, Est chu tout au travers de notre tourbillon; Et s'il eût en chemin rencontré notre terre, Elle eût été brisée en morceaux comme verre.
Síða 349 - When the slit was brought back past the nucleus on to the commencement of the tail, the gaseous spectrum became rapidly fainter, until, at a short distance from the nucleus, the continuous spectrum predominated so strongly that the middle band only, which is the brightest, could be detected on it. We have presented to us, therefore, by the light of the comet three spectra : — 1. The spectrum of bright bands. 2. The continuous spectrum of the nucleus. 3. The continuous spectrum which accompanies...
Síða 475 - We see why the animals and plants of the south may have existed in the climates of the north, where their relics and impressions are still to be found. Lastly, it explains the short period of the existence of the moral world, whose earliest monuments do not go much farther back than three thousand years.