The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern Astronomy. In a Series of Ten LecturesOakley & Mason, 1868 - 320 páginas |
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Página xiii
... observing , 59. Eclipses of the sun and moon and their effects , 60. Explanation of solar eclipses ; discovery of the moon's reflective light , and explanation of her pl ases , 61. Lunar eclipses explained ; prediction of the first ...
... observing , 59. Eclipses of the sun and moon and their effects , 60. Explanation of solar eclipses ; discovery of the moon's reflective light , and explanation of her pl ases , 61. Lunar eclipses explained ; prediction of the first ...
Página 22
... science at that remote pe- " iod , of one thing we are certain - the past , the pre- nt , and the future , constitute but one unbroken chain of observations , condensing all time , to the 223 STRUCTURE OF THE UNIVERSE .
... science at that remote pe- " iod , of one thing we are certain - the past , the pre- nt , and the future , constitute but one unbroken chain of observations , condensing all time , to the 223 STRUCTURE OF THE UNIVERSE .
Página 23
... observations , condensing all time , to the astronomer , into one mighty now . From the vantage ground which we occupy , it will not be difficult to announce so much of the great problem as has already been resolved , and to form some ...
... observations , condensing all time , to the astronomer , into one mighty now . From the vantage ground which we occupy , it will not be difficult to announce so much of the great problem as has already been resolved , and to form some ...
Página 28
... observations revealed the remarkable fact , that the periods of revolution of the planets , though differing for each one of the group , were identical for any one indi- vidual , and moreover , that a simple curve marked out the pathway ...
... observations revealed the remarkable fact , that the periods of revolution of the planets , though differing for each one of the group , were identical for any one indi- vidual , and moreover , that a simple curve marked out the pathway ...
Página 30
... observing escaped the farthest reach of man's eagle gaze , and seemed to bid de- fiance to all his powers . To conquer these difficulties , one of two things must be accomplished : either man must sweep out from earth towards the ...
... observing escaped the farthest reach of man's eagle gaze , and seemed to bid de- fiance to all his powers . To conquer these difficulties , one of two things must be accomplished : either man must sweep out from earth towards the ...
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Términos y frases comunes
absolute accomplished actually aphelion appear astonishing astronomer axis beautiful body bright 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 forever grand Halley's comet heavens Herschel inclined increase instrument investigation Jupiter Kepler law of gravitation laws of Kepler 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 phenomena philosopher planet planetary planetary orbits position precisely present primitive problem proper motion reached remarkable retrograde motion revealed 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