Outlines of astronomy |
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Page 14
... successively lifted and let fall , but we have no sense of progress . As the road is smoother , our sense of motion is diminished , though our rate of travelling is accelerated . Railway travelling , especially by night or in a tunnel ...
... successively lifted and let fall , but we have no sense of progress . As the road is smoother , our sense of motion is diminished , though our rate of travelling is accelerated . Railway travelling , especially by night or in a tunnel ...
Page 15
... through the substance of the earth . It must , therefore , have gone under it , and that not by a mere subterraneous channel ; for if we notice the points where it sets and rises for many successive days , or for SHAPE OF THE EARTH . 15.
... through the substance of the earth . It must , therefore , have gone under it , and that not by a mere subterraneous channel ; for if we notice the points where it sets and rises for many successive days , or for SHAPE OF THE EARTH . 15.
Page 16
... successive days , or for a whole year , we shall find them constantly shifting , round a very large extent of the horizon ; and , besides , the moon and stars also set and rise again in all points of the visible horizon . The conclusion ...
... successive days , or for a whole year , we shall find them constantly shifting , round a very large extent of the horizon ; and , besides , the moon and stars also set and rise again in all points of the visible horizon . The conclusion ...
Page 18
... successively into the positions MO o , MP p , M Q q , the point of contact N will mark out on the surface the circle NOPQ . The area of the spherical surface compre- Z B EA K G hended within this circle is the portion of the earth's ...
... successively into the positions MO o , MP p , M Q q , the point of contact N will mark out on the surface the circle NOPQ . The area of the spherical surface compre- Z B EA K G hended within this circle is the portion of the earth's ...
Page 27
... successively superposed strata or layers , each of the form of a spherical shell , concentric with the general surface of the sea and land , and each of which is rarer , or spe- cifically lighter , than that immediately beneath it ; and ...
... successively superposed strata or layers , each of the form of a spherical shell , concentric with the general surface of the sea and land , and each of which is rarer , or spe- cifically lighter , than that immediately beneath it ; and ...
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Common terms and phrases
amount angle angular appear apsides ascertained astronomical attraction axis bright calculation celestial circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic Edition effect epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity heavens heliocentric hemisphere horizon inclination inequality instance instrument interval Julian period 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 phænomena planet planetary pole portion position precession proper motions proportion recede reckoned refraction remarkable respect result revolution revolving right ascension rotation round satellites Saturn seen sidereal sidereal day situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible vols whole zenith