 | Charles Hutton - Ballistics - 1812 - 412 pages
...raised from them, with all possible care and faithfulness, for the purpose of determining the measure of the ratio of the mean density of the earth, to that of water, or any other known matter. These calculations were naturally and, unavoidably long and tedious;... | |
 | Science - 1819 - 516 pages
...inequalities which the flattening (aplatissement) of the earth produces in the motion of the moon ; finally, the ratio of the mean density of the earth to that of water — a ratio which Cavendish fixed by a very beautiful set of experiments at 5-£. Setting out... | |
 | Thomas Thomson - Agriculture - 1819 - 520 pages
...inequalities which the flattening (aplatissement) of the earth produces in the motion of the moon ; finally, the ratio of the mean density of the earth to that of water — a ratio which Cavendish fixed by a very beautiful set of experiments at 5-i. Setting out... | |
 | 1820 - 450 pages
...the inequalities which the flattening of the earth produces in the motion of the moon, and lastly, the ratio of the mean density of the earth to that of water, which Cavendish has fixed by an admirable experiment at five and a half. In proceeding from... | |
 | John Martin Frederick Wright - 1833 - 498 pages
...equilibrium ceases to be possible under an elliptic figure, by multiplying 0.10090 days by the square root of the ratio of the mean density of the earth to that of the fluid mass." This relatively to a fluid mass, whose density is only a fourth part of that of the... | |
 | Thomas Young - Egypt - 1855 - 804 pages
...the inequalities which the flattening of the earth produces in the motion of the moon, and lastly, the ratio of the mean density of the earth to that of water, which Cavendish has fixed by an admirable experiment at five and a half. In proceeding from... | |
 | George Biddell Airy - Astronomy - 1866 - 318 pages
...between the mean density of the earth and the density of the surface ; so that if we know one ratio we can immediately infer the other. Now, pendulum...the Harton Coal Pit, near South Shields, in the year 1854. The mean density deduced from his observations is 6 '565 : a value considerably exceeding that... | |
 | sir George Biddell Airy - 1866 - 314 pages
...between the mean density of the earth and the density of the surface; so that if we know one ratio we can immediately infer the other. Now, pendulum...mean density was put in practice by the Astronomer Eoyal, at the Harton Coal Pit, near South Shields, in the year 1854. The mean density deduced from... | |
 | George Biddell Airy - Astronomy - 1866 - 318 pages
...between the mean density of the earth and the density of the surface; so that if we know one ratio we can immediately infer the other. Now, pendulum...mean density was put in practice by the Astronomer Eoyal, at the Harton Coal Pit, near South Shields, in the year 1854. The mean density deduced from... | |
 | Elias Loomis - Astronomy - 1866 - 384 pages
...comparing the attraction of the earth with that of a small mountain. In 1774, Dr.Maskelyne determined the ratio of the mean density of the earth to that of a mountain in Scotland, called Schehallien, by ascertaining how much the local attraction of the mountain... | |
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... we can immediately infer the other. Now, pendulum observations afford us the means of determining the force of gravity at any place, (page 248,) and therefore, if the times of vibration of a pendulum at the top and bottom of a mine be found, the ratio... 
