The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern Astronomy. In a Series of Ten LecturesBaker & Scribner, 1848 - 320 sidor |
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Sida xiv
... Ptolemy , 80. System of Ptolemy , 82. Astronomy cultivated by the Arabs , 82. The era of modern science commences , 84. Co- pernicus and his discoveries , 86. His system promulged with great caution , 87. Kepler , the character of his ...
... Ptolemy , 80. System of Ptolemy , 82. Astronomy cultivated by the Arabs , 82. The era of modern science commences , 84. Co- pernicus and his discoveries , 86. His system promulged with great caution , 87. Kepler , the character of his ...
Sida 79
... Ptolemy , the true astronomers among the Greeks , should have rejected a doctrine sustained by so futile and absurd a reason . Nicetas , a follower of Pythagoras , is said to have gone farther than his master , and to have adopted the ...
... Ptolemy , the true astronomers among the Greeks , should have rejected a doctrine sustained by so futile and absurd a reason . Nicetas , a follower of Pythagoras , is said to have gone farther than his master , and to have adopted the ...
Sida 81
... Ptolemy , justly the most distinguished among his immediate successors . An ardent student , a close observer , a patient and candid reasoner , Ptolemy collected and digested the discoveries and theories of his predecessors , and trans ...
... Ptolemy , justly the most distinguished among his immediate successors . An ardent student , a close observer , a patient and candid reasoner , Ptolemy collected and digested the discoveries and theories of his predecessors , and trans ...
Sida 83
... Ptolemy , and transmitted to posterity . It is true that no change had been wrought in the Greek theory , but observations had been multiplied and slow changes measured , which prepared the way for the discoveries which were soon to ...
... Ptolemy , and transmitted to posterity . It is true that no change had been wrought in the Greek theory , but observations had been multiplied and slow changes measured , which prepared the way for the discoveries which were soon to ...
Sida 84
... Ptolemy , after entangling himself in a maze of complexity in his effort to preserve simplicity , Co- pernicus was at last driven to doubt , and doubt soon grew into disbelief . By a close examination of the mo- tions of Mercury and ...
... Ptolemy , after entangling himself in a maze of complexity in his effort to preserve simplicity , Co- pernicus was at last driven to doubt , and doubt soon grew into disbelief . By a close examination of the mo- tions of Mercury and ...
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The Planetary and Stellar Worlds: A Popular Exposition of the Great ... Ormsby MacKnight Mitchel Obegränsad förhandsgranskning - 1866 |
The Planetary and Stellar Worlds: A Popular Exposition of the Great ... Ormsby MacKnight Mitchel Obegränsad förhandsgranskning - 1867 |
The Planetary and Stellar Worlds: A Popular Exposition of the Great ... Ormsby MacKnight Mitchel Obegränsad förhandsgranskning - 1868 |
Vanliga ord och fraser
absolute accomplished actually aphelion appear astonishing astronomer axis beautiful body bright celestial sphere central centre centrifugal force circle cluster comet commenced computed constellation curve detected determined diameter direction discovered discovery double stars earth earth's orbit eccentricity eclipse efforts entire equal equator examination existence fact finally fixed stars force grand Halley's comet heavens Herschel impossible increase instrument investigation Jupiter Kepler law of gravitation light limits magnitude matter mean distance mighty miles Milky millions mind moon moon's motion move movements mysterious nearly nebula night object observation observatory orbs parallax pass perihelion period perturbations philosopher planet planetary planetary orbits position precisely present primitive problem proper motion Ptolemy reached remarkable retrograde motion revealed revolution revolving round satellites Saturn seen slowly solar system sphere Struve sun and moon sun's sweeping tance telescope theory thousand tion truth Uranus vast velocity visible wonderful
Populära avsnitt
Sida 125 - GRAVITATION.* — Every particle of matter in the universe attracts every other particle of matter with a force directly proportional to its mass, and decreasing as the square of the distance Fig.
Sida 287 - God called up from dreams a man into the vestibule of heaven, saying, ' Come thou hither, and see the glory of my house.' And to the servants that stood around his throne he said, 'Take him, and undress him from his robes of flesh : cleanse his vision, and put a new breath into his nostrils : arm him with sail-broad wings for flight. Only touch not with any change his human heart — the heart that weeps and trembles.
Sida 326 - For thou hast made him a little lower than the angels, and hast crowned him with glory and honor. Thou madest him to have dominion over the works of thy hands; thou hast put all things under his feet...
Sida 18 - Often have I swept backward in imagination six thousand years, and stood beside our Great Ancestor, as he gazed, for the first time, upon the going down of the sun. What strange sensations must have swept through his bewildered mind, as he watched the last departing ray of the sinking orb, unconscious whether he should ever behold its return ! Wrapt in a maze of thought, strange and startling, his eye long lingers about the point, at which the sun had slowly faded from his view.
Sida 65 - ... and wait ; each eclipse is duly observed, and its attendant circumstances are recorded ; when at last the darkness begins to give way, and a ray of light breaks in upon his mind. He finds that no eclipse of the sun ever occurs unless the new moon is in the act of crossing the sun's track. Here was a grand discovery. He holds the key which he believes will unlock the dread mystery, and now, with redoubled energy, he resolves to thrust it into the wards and drive back the bolts.
Sida 288 - Suddenly, as thus they rode from infinite to infinite, suddenly, as thus they tilted over abysmal worlds, a mighty cry arose, that systems more mysterious, that worlds more billowy, other heights and other depths, were coming, were nearing, were at hand. " Then the man sighed, and stopped, shuddered, and wept. His...
Sida 18 - The solitary gazer bows, and wonders and adores. The hours glide by ; the silver moon is gone ; the stars are rising, slowly ascending the heights of heaven, and solemnly sweeping downward in the stillness of the night. The first grand revolution to mortal vision is nearly completed. A faint streak of rosy light is seen in the east; it brightens : the stars fade; the planets are extinguished ; the eye is fixed in mute astonishment on the growing...
Sida 288 - Then the man sighed and stopped, shuddered, and wept. His overladen heart uttered itself in tears, and he said, ' Angel, I will go no farther; for the spirit of man acheth with this infinity.
Sida 66 - Mysterious prophet ! With what scorn must the unthinking world have received this solemn declaration ! How slowly do the moons roll away, and with what intense anxiety does the stern philosopher await the coming of that day which should crown him with victory or dash him to the ground in ruin and disgrace ! Time to him moves on leaden wings ; day after day, and at last hour after hour, roll heavily away. The last night is gone ; the moon has disappeared from his eagle gaze in her approach to the...
Sida 20 - Shall we refuse to contemplate this architecture, because " its architraves, its archways, seem ghostly from infinitude ? " Shall we turn away from this surging eloquence, because its utterance is made through sweeping worlds ? No : the mind is ever inquisitive, ever ready to attempt to scale the most rugged steeps. Wake up its enthusiasm, fling the light of hope on its pathway, and no matter how rough, and steep, and rocky it may prove, ONWARD ! is the word which charms its willing powers.