 | Francis James Jameson - Mathematics - 1851 - 144 pages
...cubic foot of water weighs 1000 oz.; find the edge of a cubical block of coal which weighs 2000 tons. The specific gravity of a substance is the ratio of the weight of any portion of its volume to that of an equal vohime of some standard substance whose specific gravity... | |
 | Popular educator - 1854 - 922 pages
...mercury expands more rapidly than the air. Density of Gase». — The specific weight or density of a gas is the ratio of the weight of a certain volume of the gas to that of the same volume of air, the gas and the air being both at the same temperature and pressure;... | |
 | Josiah P. Cooke, Jr. - 1860 - 754 pages
...gravity. It is evidently a constant quantity, and does not vary with the intensity of gravity. (69.) Specific Gravity. — The specific gravity of a substance is the ratio of its absolute weight to that of an equal volume of pure water at 4° 0. and at the same locality. If... | |
 | Adolphe Ganot - 1868 - 886 pages
...instead of air. 285. Density of tases. — The relative density of a gas, or its specifif gravity, is the ratio of the weight of a certain volume of the gas to that of the same volume of air ; both the gas and the air being at zero and at a pressure of... | |
 | Claudius Saunier - Clock and watch industry - 1881 - 590 pages
...number in brackets after the name of each metal, &c., refers to the article in which it is considered. The specific gravity of a substance is the ratio of the weight of a given bulk of that substance to the weight of the same bulk of water at a definite temperature. The... | |
 | 1882 - 376 pages
...act at the base of the ladder, and be drawn to the point of intersection of the two other forces. 8. The specific gravity of a substance is the ratio of...substance to the weight of the same volume of water. If a body floats with i 1 .,- its volume above water its specific gravity is iV If it is immersed in... | |
 | 1883 - 248 pages
...construction the point in which these two forces meet. The third force must pass through the same point. 8. The specific gravity of a substance is the ratio of the weight of a given bulk of water to the same bulk of the substance. In the example, the specific gravity is O9.... | |
 | Alfred Payson Gage - Physics - 1882 - 446 pages
...lighter than iron, it is evident that we are comparing the densities of these two substances. § 63. Specific gravity. — The specific gravity of a substance is the ratio of the density of that substance to the density of another substance assumed as a standard; in other words,... | |
 | Henry Kiddle - Physics - 1883 - 296 pages
...were deduced independently by Dalton and Gay-Lussac. 197. The specific gravity, or density, of a gas is the ratio of the weight of a certain volume of the gas to that of air, at a temperature of 0° C., and at a barometric pressure of 760 millimeters, equal... | |
 | Geology - 1920 - 128 pages
...of a mineral can be closely approximated by the ease with which it is scratched with a knife blade. Specific gravity. The specific gravity of a substance is the ratio of its weight to the weight of an equal volume of water. The weight of water (62.5 pounds per cubic foot)... | |
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Specific Gravity. The specific gravity of a substance is the ratio of the weight of the substance to the weight of the... 
