Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка 39
... rotation still con- tinue , the same phenomena of their successive rising and setting , and return to the same places , will continue to be repeated in the same order , and ( if the velocity of rotation be uniform ) in equal intervals ...
... rotation still con- tinue , the same phenomena of their successive rising and setting , and return to the same places , will continue to be repeated in the same order , and ( if the velocity of rotation be uniform ) in equal intervals ...
Сторінка 40
... rotation of a solid body under the influence of external agency are conceivable , in which the poles of the imaginary line or axis about which it is at any moment revolving shall hold no fixed places on the surface , but shift upon it ...
... rotation of a solid body under the influence of external agency are conceivable , in which the poles of the imaginary line or axis about which it is at any moment revolving shall hold no fixed places on the surface , but shift upon it ...
Сторінка 45
... diurnal motion in his horizon , occupying op- posite points , the northern Pole having been depressed , and the southern raised , so that , in this geographical position , the diurnal rotation of the heavens will appear to him.
... diurnal motion in his horizon , occupying op- posite points , the northern Pole having been depressed , and the southern raised , so that , in this geographical position , the diurnal rotation of the heavens will appear to him.
Сторінка 46
John Frederick William Herschel. the diurnal rotation of the heavens will appear to him to be performed about a horizontal axis , every star describing half its diurnal circle above and half beneath his horizon , re- maining alternately ...
John Frederick William Herschel. the diurnal rotation of the heavens will appear to him to be performed about a horizontal axis , every star describing half its diurnal circle above and half beneath his horizon , re- maining alternately ...
Сторінка 47
... rotation of the earth round a fixed axis . In order to show this , however , it will be necessary to premise a few ob- servations on parallactic motion in general , and on the appear- ances presented by an assemblage of remote objects ...
... rotation of the earth round a fixed axis . In order to show this , however , it will be necessary to premise a few ob- servations on parallactic motion in general , and on the appear- ances presented by an assemblage of remote objects ...
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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.