Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 sider |
Inni boken
Resultat 1-5 av 100
Side 2
... space with great rapidity . The sun and the moon , which appear to untaught eyes round bodies of no very considerable size , become en- larged in his imagination into vast globes , the one ap- proaching in magnitude to the earth itself ...
... space with great rapidity . The sun and the moon , which appear to untaught eyes round bodies of no very considerable size , become en- larged in his imagination into vast globes , the one ap- proaching in magnitude to the earth itself ...
Side 4
... space to be bestowed , either in combating refuted systems , or in leading the reader forward by slow and measured steps from the known to the unknown , may be more advantageously devoted to such explanatory illustrations as will ...
... space to be bestowed , either in combating refuted systems , or in leading the reader forward by slow and measured steps from the known to the unknown , may be more advantageously devoted to such explanatory illustrations as will ...
Side 12
... space , of a number of objects which we can- not approach and examine , but of which all the information we can gain is by sitting still and watching their evolutions , it must be very important for us to know , in the first instance ...
... space , of a number of objects which we can- not approach and examine , but of which all the information we can gain is by sitting still and watching their evolutions , it must be very important for us to know , in the first instance ...
Side 14
... space . The first rude notion we form of the earth is that of a flat surface , of indefinite extent in all directions from the spot where we stand , above which are the air and sky ; below , to an indefinite profundity , solid This is a ...
... space . The first rude notion we form of the earth is that of a flat surface , of indefinite extent in all directions from the spot where we stand , above which are the air and sky ; below , to an indefinite profundity , solid This is a ...
Side 15
... space from contact of every thing ex- ternal , it becomes easy to imagine it in motion - or , rather , difficult to imagine it otherwise ; for , since there is nothing to retain it in one place , should any causes of motion exist , or ...
... space from contact of every thing ex- ternal , it becomes easy to imagine it in motion - or , rather , difficult to imagine it otherwise ; for , since there is nothing to retain it in one place , should any causes of motion exist , or ...
Andre utgaver - Vis alle
Outlines of Astronomy John Frederick William Herschel,Sir John Frederick William Herschel Uten tilgangsbegrensning - 1851 |
Vanlige uttrykk og setninger
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
Populære avsnitt
Side 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.