Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 pages |
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Page 7
... whole to his imagination . A familiar parallel , or an illustration drawn from some artificial or natural process , of which he has that direct and individual impression which gives it a reality and associates it with a name , will , in ...
... whole to his imagination . A familiar parallel , or an illustration drawn from some artificial or natural process , of which he has that direct and individual impression which gives it a reality and associates it with a name , will , in ...
Page 15
... whole year , we shall find them constantly shifting , round a very large extent of the horizon ; and , besides , the ... whole earth , are yet too considerable with respect to ourselves and to that small portion of it which we can see at ...
... whole year , we shall find them constantly shifting , round a very large extent of the horizon ; and , besides , the ... whole earth , are yet too considerable with respect to ourselves and to that small portion of it which we can see at ...
Page 19
... whole . ( 25. ) In the first place , then , every one who has passed a little while at the sea side is aware that objects may be seen perfectly well beyond the offing or visible horizon - but not the whole of them . We only see their ...
... whole . ( 25. ) In the first place , then , every one who has passed a little while at the sea side is aware that objects may be seen perfectly well beyond the offing or visible horizon - but not the whole of them . We only see their ...
Page 20
... whole disappears : while yet the distinctness with which the last portion of the sail d is seen is such as to satisfy us that were it not for the interposed segment of the sea , ABCDE , the distance TE is not so great as to have ...
... whole disappears : while yet the distinctness with which the last portion of the sail d is seen is such as to satisfy us that were it not for the interposed segment of the sea , ABCDE , the distance TE is not so great as to have ...
Page 23
... whole earth's surface , we must have recourse to the geometry of the sphere , which informs us that the convex surface of a spherical segment is to the whole surface of the sphere to which it belongs as the versed sine or thickness of ...
... whole earth's surface , we must have recourse to the geometry of the sphere , which informs us that the convex surface of a spherical segment is to the whole surface of the sphere to which it belongs as the versed sine or thickness of ...
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Common terms and phrases
angle angular appear apsides ascertained astronomical 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 Edition effect elements ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe heavens heliocentric horizon inclination 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 perturbations planet planetary pole portion position Post 8vo precession proper motions proportion recede recess reckoned refraction respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible vols whole Woodcuts zenith
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Page 674 - A Dictionary of Science, Literature, and Art : Comprising the History, Description, and Scientific Principles of every Branch of Human Knowledge ; with the Derivation and Definition of all the Terms in General Use. Edited by WT BRANDE, FRSL and E.