Recreations in AstronomyJohn W. Parker, 1840 - 340 pàgines |
Des de l'interior del llibre
Resultats 1 - 5 de 44.
Pàgina 30
... half the force which is exerted by another piece of lead weighing two pounds . Again , the force of this invisible agency is subject to variation , with respect to the distance between the attracting and attracted bodies . If a mass of ...
... half the force which is exerted by another piece of lead weighing two pounds . Again , the force of this invisible agency is subject to variation , with respect to the distance between the attracting and attracted bodies . If a mass of ...
Pàgina 31
... half the distance which separated them . If , therefore , we were to suppose that the universe contained many such bodies , each as large as the Earth , each one would attract all the others , with a force varying only as the several ...
... half the distance which separated them . If , therefore , we were to suppose that the universe contained many such bodies , each as large as the Earth , each one would attract all the others , with a force varying only as the several ...
Pàgina 59
... lines so situated , would form an angle of about half a degree : when , therefore , we speak of the diameter of a € 60 APPARENT DIMENSIONS OF THE SUN . planet subtending DEGREES , MINUTES , AND SECONDS . 59 Diagram of Angles.
... lines so situated , would form an angle of about half a degree : when , therefore , we speak of the diameter of a € 60 APPARENT DIMENSIONS OF THE SUN . planet subtending DEGREES , MINUTES , AND SECONDS . 59 Diagram of Angles.
Pàgina 60
... half minutes , and at midsummer about thirty - one and a half minutes of a degree . From the apparent diameters of the Sun and planets , their real diameters are easily calculated , when the distances of these bodies are once known ...
... half minutes , and at midsummer about thirty - one and a half minutes of a degree . From the apparent diameters of the Sun and planets , their real diameters are easily calculated , when the distances of these bodies are once known ...
Pàgina 71
... half minutes , being a little more than the time occupied by the Earth in revolving on her axis . He moves round the Sun in an elliptical orbit , ( as we said do all the other planets , ) and when we speak of the distance between him ...
... half minutes , being a little more than the time occupied by the Earth in revolving on her axis . He moves round the Sun in an elliptical orbit , ( as we said do all the other planets , ) and when we speak of the distance between him ...
Altres edicions - Mostra-ho tot
Frases i termes més freqüents
Almanac altitude angle aphelion appear Aries astronomers atmosphere attraction axis called celestial celestial sphere centre circle circumstance comet constellation dark dial diameter direction disk distance Earth's orbit Earth's surface east equal equator fixed stars globe greater Greek heavenly bodies heavens Hence Herschel horizon immense inferior planet inhabitants Jupiter Latin latitude latter light and heat longitude luminous lunar magnitude Mars means Mercury meridian millions of miles Moon Moon's motion move round nearer night node o'clock observed oval parallax pass perihelion period planet point of Aries poles portion position Quadrant rays reckoned reflecting telescope refracting revolution revolve round right ascension ring rise rotation round the Earth round the Sun satellites Saturn seasons seen shadow side solar eclipse solar system space sphere spot Sun and Moon Sun-dial Sun's supposed telescope termed tides tion tropic twelve Uranus velocity Venus visible zenith Zodiac
Passatges populars
Pàgina 235 - The wicked have waited for me to destroy me : but I will consider thy testimonies. 96 I have seen an end of all perfection : but thy commandment is exceeding broad.
Pàgina 44 - And God set them in the firmament of heaven to give light upon the earth, And to rule over the day and over the night, and to divide the light from the darkness: and God saw that it was good. And the evening and the morning were the fourth day.
Pàgina 238 - Their distance argues, and their swift return Diurnal), merely to officiate light Round this opacous earth, this punctual spot...
Pàgina 102 - And, missing thee, I walk unseen On the dry smooth-shaven green, To behold the wandering moon Riding near her highest noon, Like one that had been led astray Through the heaven's wide pathless way, And oft, as if her head she bow'd, Stooping through a fleecy cloud.
Pàgina 236 - The' illustrious stranger passing, terror sheds On gazing -nations from his fiery train, Of length enormous, takes his ample round Through depths of ether ; coasts unnumber'd worlds Of more than solar glory; doubles wide Heaven's mighty cape; and then revisits earth, From the long travel of a thousand years.
Pàgina 79 - Fairest of stars, last in the train of night, If better thou belong not to the dawn, Sure pledge of day, that crown'st the smiling morn With thy bright circlet, praise him in thy sphere, While day arises, that sweet hour of prime.
Pàgina 152 - These, each exalting each, the statesman light Into the patriot; these, the public hope And eye to thee converting, bid the Muse Record what envy dares not flattery call. Now when the cheerless empire of the sky To Capricorn the Centaur Archer yields, And fierce Aquarius, stains th' inverted year ; Hung o'er the farthest verge of heaven, the sun Scarce spreads through ether the dejected day.
Pàgina 43 - And God said, Let there be lights in the firmament of heaven, to divide the day from the night ; and let them be for signs, and for seasons, and for days, and for years. And let them be for lights in the firmament of heaven to give light upon the earth ; and it was so.
Pàgina 151 - To shake the sounding marsh, or from the shore The plovers when to scatter o'er the heath And sing their wild notes to the listening waste. At last from Aries rolls the bounteous sun, And the bright Bull receives him. Then no more Th...
Pàgina 66 - Prime cheerer Light ! Of all material beings first, and best ! Efflux divine! Nature's resplendent robe! Without whose vesting beauty all were wrapt In unessential gloom; and thou, O Sun!