 | John Bigland, Jedidiah Morse - 1812 - 470 pages
...centre about 490,000 miles ; its heat was consequently 2000 limes greater than that of red-hot iron. In that part of its orbit which is nearest to the Sun, it moves with the astonishing velocity of 880,000 miles per hour. The amazing distance to which the... | |
 | Jeremiah Joyce - 1815 - 680 pages
...Mercury at the rate of 105,OOO miles in an hour. But here we come to a comet whose progressive motion in that part of its orbit which is nearest to the sun, is more than equal to eight times the velocity of Mercury. Charles. Were not comets formerly dreaded,... | |
 | William Jillard Hort - 1822 - 308 pages
...comet becomes more brilliant, and its luminous train gradually increases in length. When it comes to that part of its orbit which is nearest to the sun, the length of its tail reaches its utmost point, and its lustre sometimes equals that of Venus. As it departs... | |
 | Jeremiah Joyce - 1828 - 262 pages
...Mercury at the rate of 105,000 miles in an hour. But here we come to a comet, whose progressive motion, in that part of its orbit which is nearest to the sun, is more than equal to eight times the velocity of Mercury. Charles. Were not comets formerly dreaded... | |
 | William Jevons - 1828 - 230 pages
...orbit, it must of course be subject to the same inequality. It is, accordingly, faster in winter, when the earth is in that part of its orbit which is nearest the sun; and slower in summer, when the earth is more remote from the sun. Now it is evident, that... | |
 | Henry Fergus - 1833 - 294 pages
...and Roemer, a Danish astronomer, observed that these eclipses are seen sixteen minutes sooner when the earth is in that part of its orbit which is nearest Jupiter, than when it is farthest from him. This shows that light takes sixteen minutes to travel through... | |
 | 1836 - 300 pages
...annual revolution of the earth round the sun, every part of its surface, between the latitudes of 23^° north and south from the equator, is in turn exposed...our winter is directly exposed to the sun, would be effected by this greater proximity. Such, however, is not the case ; for this greater prox mity to... | |
 | Thomas Chalmers - 1836 - 572 pages
...annual revolution of the earth round the sun, every part of its surface, between the latitudes of 23^° north and south from the equator, is in turn exposed...our winter is directly exposed to the sun, would be effected by this greater proximity. Such, however, is not the case ; for this greater proximity to... | |
 | Henry Fergus - 1838 - 332 pages
...and Roemer,* a Danish astronomer, observed that these eclipses are seen sixteen minutes sooner when the earth is in that part of its orbit which is nearest Jupiter, than when it is farthest from him. This shows that light takes sixteen minutes to travel through... | |
 | Henry Fergus - 1838 - 332 pages
...and Roemer,* a Danish astronomer, observed that these eclipses are seen sixteen minutes sooner when the earth is in that part of its orbit which is nearest Jupiter, than when it is farthest from him. This shows that light takes sixteen minutes to travel through... | |
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There is also another circumstance connected with the earth's motion in its orbit, which, as partaking of the character of a primary cause, may here be briefly noticed. The earth's orbit is not a circle, but an ellipse, of which the sun occupies one of... 
