The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern Astronomy. In a Series of Ten Lectures
Baker & Scribner, 1848 - 320 من الصفحات
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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
الصفحة 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.
الصفحة 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.
الصفحة 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...
الصفحة 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.
الصفحة 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.
الصفحة 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...
الصفحة 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...
الصفحة 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.
الصفحة 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...
الصفحة 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.