An Introduction to Astronomy ...J. Nunn, 1816 - 428 էջ |
From inside the book
Արդյունքներ 60–ի 1-ից 5-ը:
Էջ 22
... method by which the measurement of this large body was effected , as well as seve- ral other matters relating to the true figure of the earth itself , depend upon principles which will be better explained hereafter , I must defer ...
... method by which the measurement of this large body was effected , as well as seve- ral other matters relating to the true figure of the earth itself , depend upon principles which will be better explained hereafter , I must defer ...
Էջ 39
... nearest approximate numbers are better re- tained in the memory than those which are more accurate , I have preferred this method of express- ing them for the present , but , when occasion LET . III . FIRMAMENT OF FIXED STARS . 39.
... nearest approximate numbers are better re- tained in the memory than those which are more accurate , I have preferred this method of express- ing them for the present , but , when occasion LET . III . FIRMAMENT OF FIXED STARS . 39.
Էջ 70
... method which he has taken to establish the existence and attributes of the Deity , merely from any abstract notions which we can form of such a being , independently of his works , is also very im- proper and unsatisfactory . And the ...
... method which he has taken to establish the existence and attributes of the Deity , merely from any abstract notions which we can form of such a being , independently of his works , is also very im- proper and unsatisfactory . And the ...
Էջ 79
... method of obtain- ing a true knowledge in philosophy was by obser- vation and mechanical experiments . It was now that men began to discern truth from falsehood , and , disregarding hypothesis and conjec- ture , to investigate the works ...
... method of obtain- ing a true knowledge in philosophy was by obser- vation and mechanical experiments . It was now that men began to discern truth from falsehood , and , disregarding hypothesis and conjec- ture , to investigate the works ...
Էջ 91
... method then in use . About the time of these discoveries , which were afterwards so fruitful in the hands of Huygens and others , we may place the invention of the teles- cope ; an instrument so singular in its nature , that before its ...
... method then in use . About the time of these discoveries , which were afterwards so fruitful in the hands of Huygens and others , we may place the invention of the teles- cope ; an instrument so singular in its nature , that before its ...
Common terms and phrases
ancient angle appear astronomers axis bodies called celestial centre Ceres circle clock comets dark degrees determined diameter disc discovered discoveries diurnal diurnal rotation doctrine earth eclipse epact equal equator fall figure fixed stars force globe gravity greater greatest half heavens hemisphere horizon hundred idea imagined instrument Jupiter Kepler latitude less Libra light longitude lunar lunar eclipse magnitude manner measure Mercury meridian method millions of miles minutes moon moon's motion move round nature Newton night nodes noon north pole northern northern hemisphere observed occasioned orbit parallax pass perceive perihelion phænomena phænomenon philosophers planets pole reckoned revolution revolves round rotation round the earth round the sun satellites Saturn seconds seen situation solar southern constellation space sun and moon sun's supposed surface tance telescope things thousand tion toises twelve Tycho Brahe Uranus Venus Vesta Villejuif whilst zenith
Սիրված հատվածներ
Էջ 58 - Or, if they list to try Conjecture, he his fabric of the Heavens Hath left to their disputes — perhaps to move His laughter at their quaint opinions wide Hereafter, when they come to model Heaven, And calculate the stars; how they will wield The mighty frame; how build, unbuild, contrive To save appearances; how gird the Sphere With Centric and Eccentric scribbled o'er, Cycle and Epicycle, orb in orb.
Էջ 289 - Or of the eternal co-eternal beam, May I express thee unblamed ? since God is light, And never but in unapproached light Dwelt from eternity, dwelt then in thee, Bright effluence of bright essence increate. Or hear'st thou rather pure ethereal stream, Whose fountain who shall tell?
Էջ 332 - He scarce had ceased, when the superior fiend Was moving toward the shore: his ponderous shield, Ethereal temper, massy, large, and round, Behind him cast; the broad circumference Hung on his shoulders like the moon, whose orb Through optic glass the Tuscan artist views, At evening, from the top of Fesole, Or in Valdarno, to descry new lands, Rivers, or mountains, in her spotty globe.
Էջ 382 - Less than archangel ruined, and the excess Of glory obscured ; as when the sun, new risen, Looks through the horizontal misty air Shorn of his beams, or from behind the moon, In dim eclipse, disastrous twilight sheds On half the nations, and with fear of change Perplexes monarchs.
Էջ 294 - Horrid with frost and turbulent with storm, Blows autumn, and his golden fruits, away : Then melts into the spring : soft spring, with breath Favonian, from warm chambers of the south, Recalls the first.
Էջ 289 - Or hear'st thou rather pure ethereal stream, Whose fountain who shall tell? Before the sun, Before the heavens thou wert, and at the voice Of God, as with a mantle didst invest The rising world of waters dark and deep, Won from the void and formless infinite.
Էջ 289 - His mirror, with full face borrowing her light From him, for other light she needed none In that...
Էջ 401 - This Being governs all things, not as the Soul of the World, but as Lord over all; and, on account of his dominion, he is wont to be called Lord God, or Universal Ruler.
Էջ 400 - This most beautiful System of the Sun, Planets, and Comets, could only proceed from the counsel and dominion of an intelligent and powerful Being.
Էջ 76 - Works in the secret deep; shoots, steaming, thence The fair profusion that o'erspreads the Spring: Flings from the sun direct the flaming day; Feeds every creature ; hurls the tempest forth ; And, as on earth this grateful change revolves, With transport touches all the springs of life.