 | Thomas Dick - 1799 - 200 頁
...it is probable, will never be accurately determined. If, indeed, the air were of an equal density, from the surface of the earth to the top of the atmosphere, its height might be easily determined ; for it is found by experiment, that the weight of a column... | |
 | William Duane - 1811 - 378 頁
...the middle ; and that of the middle is finer than the lower. The weight of a column of air, reaching from the surface of the earth to the top of the atmosphere, is equal to that of a column of water, of the same diameter, 33 feet high ; for so high, and no higher... | |
 | Encyclopaedias, John Millard - 1813 - 712 頁
...Thus it is found, by means of a barometer (see the next chapter) that the weight of a column of air from the surface of the earth to the top of the atmosphere, is on a medium equivalent to the pressure of a column of mercury of equal base, in the tube of the... | |
 | John Millard - 1813 - 704 頁
...Thus it is found, by means of a barometer (see the next chapter) that the weight of a column of air from the surface of the earth to the top of the atmosphere, is on a medium equivalent to the pressure of a column of mercury of equal base, in the tube of the... | |
 | James Ferguson - 1814 - 420 頁
...column of water 33 feet high, is equal to the weight of as thick a PLATE x. column of air, reaching from the surface of the earth to the top of the atmosphere : so that there will then be an equilibrium, and, consequently, though there would be weight enough... | |
 | James Ferguson - 1823 - 406 頁
...weight of a column of water 33 feet high, is equal to the weight of as thick a column of air, reaching from the surface of the earth to the top of the atmosphere ; so that there will then be an equilibrium, and, consequently, though there would be weight enough... | |
 | Luke Herbert - 1824 - 394 頁
...because the weight of a column o£ water 33 feet high is equal to the weight of a column of air reaching from the surface of the earth to the top of the atmosphere. Mercury may be drawn through a Syphon in the same manner as water ; but then the utmost height of the... | |
 | Thomas Curtis (of Grove house sch, Islington) - 426 頁
...from which we may infer that a column of air, having a square inch for its base, and which extends from the surface of the earth to the top of the atmosphere, weighs about fifteen pounds. The atmospheric engine is a machine whose efficacy depends on the principle... | |
 | 1829 - 500 頁
...from which we may infer that a column of air, having a square inch for its base, and which extends from the surface of the earth to the top of the atmosphere, weighs about fifteen pounds*. The atmospheric engine is a machine whose efficacy depends on the principle... | |
 | William Martin - 1832 - 504 頁
...the surface of the earth. It is found by means of the barometer, that the weight of a column of air from the surface of the earth to the top of the atmosphere, is on a medium equivalent to the pressure of a column of mercury of equal base, on the tube of the... | |
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This will cause the air at the equator to stand more than seven miles higher from the surface of the earth to the top of the atmosphere than at the north pole. 
