The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern AstronomyOakley & Mason, 1866 - 326 páginas |
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Página 38
... miles in every minute , for a thousand years ; nay , should it sweep onward at the same speed for ten thousand years , this stupendous distance cannot bury it from the persecuting gaze of man . But if distance is to form no barrier , no ...
... miles in every minute , for a thousand years ; nay , should it sweep onward at the same speed for ten thousand years , this stupendous distance cannot bury it from the persecuting gaze of man . But if distance is to form no barrier , no ...
Página 87
... miles , was absolutely nothing , when compared with that mighty distance . Under these circumstances , it is not wonderful that Copernicus should have promulged his system with extreme diffidence and only after long delay ; indeed his ...
... miles , was absolutely nothing , when compared with that mighty distance . Under these circumstances , it is not wonderful that Copernicus should have promulged his system with extreme diffidence and only after long delay ; indeed his ...
Página 116
... at which it operated increased . That is , if the intensity of the power which it exerted on a planet where the distance was one hundred millions of miles from the sun , be counted as unity 116 STRUCTURE OF THE UNIVERSE .
... at which it operated increased . That is , if the intensity of the power which it exerted on a planet where the distance was one hundred millions of miles from the sun , be counted as unity 116 STRUCTURE OF THE UNIVERSE .
Página 117
... miles from the sun , be counted as unity , removing the planet to double the distance , or to two hundred millions of miles , the sun's influence over it would be reduced to one - fourth of its former value . With Kepler this wonderful ...
... miles from the sun , be counted as unity , removing the planet to double the distance , or to two hundred millions of miles , the sun's influence over it would be reduced to one - fourth of its former value . With Kepler this wonderful ...
Página 119
... miles . We now return to the examination of the great question of a central force , and to the discovery of its law of action . Allow me in the out - set to explain , with extreme simplicity , the assumed law , whose truth or falsehood ...
... miles . We now return to the examination of the great question of a central force , and to the discovery of its law of action . Allow me in the out - set to explain , with extreme simplicity , the assumed law , whose truth or falsehood ...
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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 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 forever grand Halley's comet heavens Herschel Hipparchus human genius hundred inclined increase instrument investigation Jupiter Kepler law of gravitation light limits magnitude mass matter mean distance mighty miles millions mind moon moon's motion move movements mysterious nearly night object observation observatory orbs parallax pass perihelion perturbations phenomena philosopher planet planetary planetary orbits position precisely present primitive problem proper motion Ptolemy reached remarkable retrograde motion revealed revolving rotation round satellites Saturn slowly solar system sphere sun and moon sun's sweeping tance telescope theory thousand tion truth Uranus vast velocity wonderful