Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
З цієї книги
Результати 1-5 із 38
Сторінка 23
... recede from the surface . From its indications we learn , that when we have ascended to the height of 1000 feet , we have left below us about one - thirtieth of the whole mass of the atmosphere : that at 10,600 feet of perpendicular ...
... recede from the surface . From its indications we learn , that when we have ascended to the height of 1000 feet , we have left below us about one - thirtieth of the whole mass of the atmosphere : that at 10,600 feet of perpendicular ...
Сторінка 25
... recede upwards , till , within a very moderate distance ( such as would be represented by the sixth of an inch on the model we have before spoken of , and which is not more in proportion to the globe on which it rests , than the downy ...
... recede upwards , till , within a very moderate distance ( such as would be represented by the sixth of an inch on the model we have before spoken of , and which is not more in proportion to the globe on which it rests , than the downy ...
Сторінка 29
... recede from the earth's surface the temperature of the air is constantly diminishing , yet the law , or amount of this diminution at different heights , is not yet fully ascertained . Moreover , the refracting power of air is ...
... recede from the earth's surface the temperature of the air is constantly diminishing , yet the law , or amount of this diminution at different heights , is not yet fully ascertained . Moreover , the refracting power of air is ...
Сторінка 41
... recede from the horizon , while those which lie towards the west will be seen to approach it ; and , if watched long enough , will , for the most part , finally sink beneath it , and disappear ; while others , in the eastern quarter ...
... recede from the horizon , while those which lie towards the west will be seen to approach it ; and , if watched long enough , will , for the most part , finally sink beneath it , and disappear ; while others , in the eastern quarter ...
Сторінка 47
... recede from , and those which he advances towards to approach , him . Not only , however , do external objects at rest appear in motion generally , with respect to ourselves when we are in motion among them , but they appear to move one ...
... recede from , and those which he advances towards to approach , him . Not only , however , do external objects at rest appear in motion generally , with respect to ourselves when we are in motion among them , but they appear to move one ...
Інші видання - Показати все
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
Популярні уривки
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.