Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 pages |
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Page 15
... proportion to the whole earth , are yet too considerable with respect to ourselves and to that small portion of it which we can see at a single view , to allow of our forming any judgment of the form of the whole , from that of a part ...
... proportion to the whole earth , are yet too considerable with respect to ourselves and to that small portion of it which we can see at a single view , to allow of our forming any judgment of the form of the whole , from that of a part ...
Page 21
... proportion to the distance of the visible horizon from the eye as that distance does to the height of the eye above the sea level . When the stations are unequal in height , the problem is a little more complicated . ( 28. ) Although ...
... proportion to the distance of the visible horizon from the eye as that distance does to the height of the eye above the sea level . When the stations are unequal in height , the problem is a little more complicated . ( 28. ) Although ...
Page 22
... proportion , into the substance of the globe : so that the ocean comes to be conceived as a mere film of liquid , such as , on our model , would be left by a brush dipped in colour , and drawn over those parts intended to represent the ...
... proportion , into the substance of the globe : so that the ocean comes to be conceived as a mere film of liquid , such as , on our model , would be left by a brush dipped in colour , and drawn over those parts intended to represent the ...
Page 23
... proportion in point of quantity . The mechanical laws which would regulate the distribution and movements of such a film , and its adhesion to the surface , are altogether different from those which govern the phenomena of the sea ...
... proportion in point of quantity . The mechanical laws which would regulate the distribution and movements of such a film , and its adhesion to the surface , are altogether different from those which govern the phenomena of the sea ...
Page 24
... proportion to the incumbent pressure , it is easy to see that , although by rising still higher we should continually get above more and more of the air , and so relieve ourselves more and more from the pressure with which it weighs ...
... proportion to the incumbent pressure , it is easy to see that , although by rising still higher we should continually get above more and more of the air , and so relieve ourselves more and more from the pressure with which it weighs ...
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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.