Letters on Astronomy: Addressed to a Lady; in which the Elements of the Science are Familiarly Explained in Connexion with Its Literary History |
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Page 11
... motion , will continue so , until some force stops them , appears so much a matter of course , that we can at first hardly see any good reason why it should be dignified with the title of the first great law of motion ; and yet it ...
... motion , will continue so , until some force stops them , appears so much a matter of course , that we can at first hardly see any good reason why it should be dignified with the title of the first great law of motion ; and yet it ...
Page 15
... motion of the ship that carries us from it . Although many of the appearances , presented by the motions of the heavenly bodies , may be explained on the former erroneous hypothesis , yet , like other hypoth- eses founded in error , it ...
... motion of the ship that carries us from it . Although many of the appearances , presented by the motions of the heavenly bodies , may be explained on the former erroneous hypothesis , yet , like other hypoth- eses founded in error , it ...
Page 16
... motions , as ex- emplified in the motion of the earth around the sun . LETTER II . DOCTRINE OF THE SPHERE . " All are but parts of one stupendous whole , Whose body Nature is , and God the soul . " - Pope . LET us now consider what ...
... motions , as ex- emplified in the motion of the earth around the sun . LETTER II . DOCTRINE OF THE SPHERE . " All are but parts of one stupendous whole , Whose body Nature is , and God the soul . " - Pope . LET us now consider what ...
Page 26
... motion will correspond to the di- urnal movement of the earth . Pass a wire or a knit- ting needle through the poles , and it will represent the axis of the sphere . A circle cut around the apple , half way between the poles , will be ...
... motion will correspond to the di- urnal movement of the earth . Pass a wire or a knit- ting needle through the poles , and it will represent the axis of the sphere . A circle cut around the apple , half way between the poles , will be ...
Page 39
... motion on a rough road . Field of view is another important consideration . The finest instruments exhibit the moon , for example , not only bright and distinct , in all its parts , but they take in the whole disk at once ; whereas ...
... motion on a rough road . Field of view is another important consideration . The finest instruments exhibit the moon , for example , not only bright and distinct , in all its parts , but they take in the whole disk at once ; whereas ...
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Common terms and phrases
angle appear ascertain astronomers atmosphere attraction axis called celestial centre circle comet conjunction constellation degrees diameter direction discovery disk distance diurnal motion doctrine double stars earth ecliptic equal equator equinox exhibited fact fixed stars force Galileo globe gravity greater greatest half Halley's comet heavenly bodies heavens Hence Herschel horizon hundred inferior conjunction instrument John Herschel Jupiter Kepler latitude laws length less light longitude lunar lunar eclipse magnitude measure Mercury meridian meteors millions of miles minutes moon moon's motion move Nature nearer nearly node objects observations opposite orbit parallax passing perihelion period phenomena planetary planets pole respect revolve right ascension ring round satellites Saturn seen shadow side space spectator sphere sun's superior planets supposed surface telescope thousand tides tion truth Tycho Tycho Brahe universal gravitation Uranus velocity Venus vernal equinox visible west to east