 | 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;... | |
 | 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... | |
 | Thomas Thomson - Agriculture - 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... | |
 | 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... | |
 | sir George Biddell Airy - 1866 - 314 pages
...the attraction of the whole earth, considered as a sphere, on a body at its surface is the same as 1f the whole matter of the earth were collected at its...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... | |
 | William James Rolfe, Joseph Anthony Gillet - Astronomy - 1868 - 328 pages
...gravity at any place ; and therefore, if the times of vibration of a pendulum at the top and bottom ol a mine be found, the ratio of the force of gravity...mean density of the earth to that of its surface. The pendulum is made of metal; it turns with a hard steel prism, having a very fine edge, upon plates... | |
 | Elias Loomis - Astronomy - 1870 - 274 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 by ascertaining how much the local attraction of the mountain deflected a plumb-line... | |
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... a mine be found, the ratio of the force of gravity at the top to that at the bottom may be calculated, and thence the ratio of the mean density of the earth to that of its surface. 
