Outlines of Astronomy |
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Page 135
... attraction on it . This attraction , as Newton has demonstrated , consists , not in a tendency of all matter to any one particular centre , but in a disposition of every particle of matter in the universe to press towards , and if not ...
... attraction on it . This attraction , as Newton has demonstrated , consists , not in a tendency of all matter to any one particular centre , but in a disposition of every particle of matter in the universe to press towards , and if not ...
Page 136
... attraction on the two bodies . Calculation confirms this idea . It is a question of purely mathematical investigation , and has been treated with perfect clearness and precision by Newton , Maclaurin , Clairaut , and many other eminent ...
... attraction on the two bodies . Calculation confirms this idea . It is a question of purely mathematical investigation , and has been treated with perfect clearness and precision by Newton , Maclaurin , Clairaut , and many other eminent ...
Page 236
... attractions and repulsions is actually enfeebled by distance , and much more rapidly than in the simple proportion ... attracted bodies are spheres , it admits of an easy and direct solution . Newton himself has shown ( Princip . 236 ...
... attractions and repulsions is actually enfeebled by distance , and much more rapidly than in the simple proportion ... attracted bodies are spheres , it admits of an easy and direct solution . Newton himself has shown ( Princip . 236 ...
Page 237
... attraction is precisely the same as if the whole matter of each sphere were collected into its centre , and the spheres were single particles there placed ; so that , in this case , the general law applies in its strict wording . The ...
... attraction is precisely the same as if the whole matter of each sphere were collected into its centre , and the spheres were single particles there placed ; so that , in this case , the general law applies in its strict wording . The ...
Page 238
... attraction is balanced , ( and which , therefore , becomes an exact mea- sure of the sun's attractive energy as exerted on the earth , ) we find it to be immensely greater than would suffice to counteract the earth's attrac- tion on an ...
... attraction is balanced , ( and which , therefore , becomes an exact mea- sure of the sun's attractive energy as exerted on the earth , ) we find it to be immensely greater than would suffice to counteract the earth's attrac- tion on an ...
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Common terms and phrases
altitude amount angle angular appear apsides ascertained astronomers axis bright calculation celestial centre circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic effect ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity greater heavens heliocentric horizon inclination increase inequality instance instrument interval Jupiter latitude latter less light longitude lunar magnitude mass mean measure meridian moon moon's motion nearly nebula node normal force nutation object observed orbit parallax parallel perigee perihelion period perpendicular perturbations planet planetary pole portion position precession proper motions proportion recede recess reckoned refraction remarkable respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose syzygies tangential force telescope tion Uranus variation velocity visible whole zenith