The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern Astronomy in a Series of Ten LecturesOakley & Mason, 1867 - 336 páginas |
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Página 31
... mass of matter contained in each individual of the system becomes accurately known . Then is undertaken the grand problem of perturbations . The telescope re- veals the fact that slow and mysterious changes are going on in the mean ...
... mass of matter contained in each individual of the system becomes accurately known . Then is undertaken the grand problem of perturbations . The telescope re- veals the fact that slow and mysterious changes are going on in the mean ...
Página 32
... masses , distances , motions , and positions , at the close of a thousand revolutions . What mind possessed the gigantic power to grasp this mighty problem ? Reason was lost in wander- ing mazes , and the brightest intellect sunk ...
... masses , distances , motions , and positions , at the close of a thousand revolutions . What mind possessed the gigantic power to grasp this mighty problem ? Reason was lost in wander- ing mazes , and the brightest intellect sunk ...
Página 115
... mass of the moving body , and to the orbit which it described in wheeling around the sun . That they were held by some invisi ble power to their centre of motion , was manifest from the fact that the centrifugal force , generated by the ...
... mass of the moving body , and to the orbit which it described in wheeling around the sun . That they were held by some invisi ble power to their centre of motion , was manifest from the fact that the centrifugal force , generated by the ...
Página 125
... mass of the attracting body , and decreasing with the distance according to the law of gravitation . " His profound knowledge of the higher mathematics , which he had greatly improved , gave to him aston- ishing facilities for the ...
... mass of the attracting body , and decreasing with the distance according to the law of gravitation . " His profound knowledge of the higher mathematics , which he had greatly improved , gave to him aston- ishing facilities for the ...
Página 129
... masses or quantities of matter . Here we close the era of research by observation . The mind has gained its last grand object . The era of physical astronomy dawns ; new and wonderful scenes open , and to the contemplation of these , we ...
... masses or quantities of matter . Here we close the era of research by observation . The mind has gained its last grand object . The era of physical astronomy dawns ; new and wonderful scenes open , and to the contemplation of these , we ...
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Términos y frases comunes
absolute accomplished actually aphelion appear astonishing astronomer axis beautiful body bright celestial celestial sphere centre centrifugal force circle cluster comet commenced computed constellations 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 movements moving 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 telescope theory thousand tion truth Uranus vast velocity visible watch wonderful
Pasajes populares
Página 316 - 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...
Página 277 - Take him and undress him from his robes of flesh ; cleanse his vision, and put a new breath into his nostrils ; only touch not with any change his human heart — the heart that weeps and trembles. It was done ; and with a mighty angel for his guide, the man stood ready for his infinite voyage ; and from the terraces of heaven, without sound or farewell, at once they wheeled away into endless space. Sometimes with...
Página 115 - 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.
Página 277 - 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 ; only touch not with any change his human heart — the heart that weeps and trembles.
Página 277 - Then, from a distance that is counted only in heaven, light dawned for a time through a sleepy film : by unutterable pace the light swept to them, they by unutterable pace to the light : in a moment the rushing of planets was upon them : in a moment the blazing of suns was around them. Then came eternities of twilight, that revealed, but were not revealed.
Página 88 - If you forgive me, I rejoice, if you are angry, I can bear it ; the die is cast, the book is written ; to be read either now or by posterity, I care not which ; it may well wait a century for a reader, as God has waited six thousand years for an observer.
Página 18 - 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 splendor, till the first rays of the returning sun dart their radiance on the young earth and its solitary inhabitant. To him ' the evening and the morning were the first day.
Página 218 - Lepaute was such, that without her we never should have dared to undertake the enormous labor, in which it was necessary to calculate the distance of each of the two planets, Jupiter and Saturn, from the comet, separately for every degree, for one hundred and fifty years.
Página 278 - 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...
Página 57 - ... is dimmed, his light is feeble. At last it comes ! Blackness is eating away his round disc. Onward with slow but steady pace the dark veil moves, blacker than a thousand nights. The gloom deepens ; the ghastly hue of death covers the universe, the last ray is gone, and horror reigns. A wail of terror fills the murky air, the...