Astronomical and geographical essaysW. & S. Jones, 1812 - 518 pages |
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Page 192
... broad paper circle , instead of horizon , by which it had been heretofore denominated . The propriety of this change , will be evident to all those who consider , that this circle , in some cases , repre- sents that which divides light ...
... broad paper circle , instead of horizon , by which it had been heretofore denominated . The propriety of this change , will be evident to all those who consider , that this circle , in some cases , repre- sents that which divides light ...
Page 197
... CIRCLES DESCRIBED ON THE BROAD PAPER CIRCLE BC ; TOGETHER WITH A GENERAL ACCOUNT OF ITS USES . It contains four concentric circular spaces , the innermost of which is divided into 360 , and num- bered into four quadrants , beginning at ...
... CIRCLES DESCRIBED ON THE BROAD PAPER CIRCLE BC ; TOGETHER WITH A GENERAL ACCOUNT OF ITS USES . It contains four concentric circular spaces , the innermost of which is divided into 360 , and num- bered into four quadrants , beginning at ...
Page 198
George Adams William Jones. In all positions of the celestial globe , this broad paper circle represents the plane of the horizon , and distinguishes the visible from the invisible part of the heavens ; but in the terrestrial globe , it ...
George Adams William Jones. In all positions of the celestial globe , this broad paper circle represents the plane of the horizon , and distinguishes the visible from the invisible part of the heavens ; but in the terrestrial globe , it ...
Page 227
... broad paper circle ; so that all those places which are above the wire circle will have twilight , but it will be dark to all those places below it . I have already observed , that it is owing to the atmosphere , that we are favoured ...
... broad paper circle ; so that all those places which are above the wire circle will have twilight , but it will be dark to all those places below it . I have already observed , that it is owing to the atmosphere , that we are favoured ...
Page 228
... broad paper circle as the plane which distinguishes light from darkness ; that is , the enlightened half of the earth's surface , from that which is not enlightened . For when the sun shines upon a globe , he 228 MOTION OF THE EARTH ...
... broad paper circle as the plane which distinguishes light from darkness ; that is , the enlightened half of the earth's surface , from that which is not enlightened . For when the sun shines upon a globe , he 228 MOTION OF THE EARTH ...
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Other editions - View all
ASTRONOMICAL & GEOGRAPHICAL ES George 1750-1795 Adams,William 1763-1831 Jones No preview available - 2016 |
ASTRONOMICAL & GEOGRAPHICAL ES George 1750-1795 Adams,William 1763-1831 Jones No preview available - 2016 |
Common terms and phrases
angle apparent motion Aries astronomers azimuth body bright bring broad paper circle called Capricorn celestial globe centre comet conjunction dark dial diameter disc distance diurnal motion earth ecliptic edge elevated enlightened equal equator equinoctial equinox fixed stars Georgium Sidus given place greatest elongation heavens hemisphere Herschel horary index hour circle hour-lines illuminated inferior planets inhabitants Jupiter latitude light London longest day longitude magnitude Mars Mercury miles minutes month moon moon's nearer night nodes noon north pole number of degrees observed opposite parallax parallel pass plate polar circle PROBLEM quadrant of altitude rays Rectify the globe retrograde retrograde motion revolution right ascension round the sun satellites Saturn seen semicircle shadow shew ship situation solar spectator sphere strong brass meridian sun appears sun's place superior planet suppose surface telescope terrestrial globe tion tropic tropic of Cancer turn the globe Venus vertical visible west to east zenith
Popular passages
Page 72 - Their names are Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricornus, Aquarius, Pisces; the whole occupying a complete circle, or broad belt, in the heavens, called the Zodiac.
Page 226 - If both the places be situated on the same parallel of latitude, their bearing is either east or west from each other ; if the'y be situated on the same meridian, they bear north and south from each other ; if they be situated on the same rhumb-line, that rhumbline is their bearing : if they be not situated on the same rhumb-line, lay the quadrant of altitude over the. two places, and that rhumb-line which is the nearest of...
Page 54 - Our views of Nature, however imperfect, serve to represent to us, in the most sensible manner, that mighty power which prevails throughout, acting with a force and efficacy that appears to suffer no diminution from the greatest distances of space or intervals of time...
Page 199 - To make this circle answer the purpose, a semicircular wire is placed over it, carrying two indices, one on the east, the other on the west side of the strong brass circle.
Page 308 - By subtracting this from twenty-four hours, we have the length of the shortest night. If we bring the first degree of Capricorn to the brass meridian' and proceed in all respects as before, we shall have the length of the longest night and shortest day. Thus, at Delhi, the...
Page 312 - As the terrestrial globe by turning on its axis represents the real diurnal motion of the earth ; so the celestial globe, by turning on its axis, represents the apparent motion of the heavens.
Page 210 - ... than the hour at the given place, turn the globe eastward till the index has passed over as many hours as are equal to the given...
Page 285 - ... equal parts or degrees, as in the figure. Because the hour-lines are less distant from each other about noon, than in any other part of the dial, it is best to have the centres of these quadrants at a little distance from the centre of the dial-plane...
Page 420 - The grand transition, that there lives and works A soul in all things, and that soul is God. The beauties of the wilderness are His, That make so gay the solitary place Where no eye sees them. And the fairer forms That cultivation glories in are His. He sets the bright procession on its way, And marshals all the order of the year ; He marks the bounds which winter may not pass, And blunts his pointed fury ; in its case, Russet and rude...
Page 83 - THE natural advantages which arise from the position of the earth which we inhabit with respect to the other planets, afford much employment to mathematical speculation, by which it has been discovered, that no other conformation of...