Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка viii
... existence and situation of the disturbing planet became revealed to us , I have endeavoured , in pursuance of the general plan of this work , rather to exhibit a rational view of the dynamical action , than to convey the slightest idea ...
... existence and situation of the disturbing planet became revealed to us , I have endeavoured , in pursuance of the general plan of this work , rather to exhibit a rational view of the dynamical action , than to convey the slightest idea ...
Сторінка 24
... existence of any air at all would fail to afford the slightest perceptible indications of its presence . ( 34. ) Laying out of consideration , therefore , at present , all nice questions as to the probable existence of a definite limit ...
... existence of any air at all would fail to afford the slightest perceptible indications of its presence . ( 34. ) Laying out of consideration , therefore , at present , all nice questions as to the probable existence of a definite limit ...
Сторінка 25
... existence of air dis- appears . ( 36. ) Arguments , however , are not wanting to render it , if not absolutely certain , at least in the highest degree pro- bable , that the surface of the aërial , like that of the aqueous ocean , has a ...
... existence of air dis- appears . ( 36. ) Arguments , however , are not wanting to render it , if not absolutely certain , at least in the highest degree pro- bable , that the surface of the aërial , like that of the aqueous ocean , has a ...
Сторінка 26
... existence . It thus produces a false impression respecting their places , which must be rectified by ascertaining the amount and direction of the displacement so apparently produced on each , before we can come at a knowledge of the ...
... existence . It thus produces a false impression respecting their places , which must be rectified by ascertaining the amount and direction of the displacement so apparently produced on each , before we can come at a knowledge of the ...
Сторінка 54
... existence , whether perceived by him or not ) ? By what rule is he to ascertain , from the appearances presented to him while himself in motion , what would be the appearances were he at rest ? It by no means follows , indeed , that he ...
... existence , whether perceived by him or not ) ? By what rule is he to ascertain , from the appearances presented to him while himself in motion , what would be the appearances were he at rest ? It by no means follows , indeed , that he ...
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Outlines of Astronomy John Frederick William Herschel,Sir John Frederick William Herschel Повний перегляд - 1851 |
Загальні терміни та фрази
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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Сторінка 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.