 | Thomas Dick - 1799 - عدد الصفحات: 200
...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 - عدد الصفحات: 378
...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 - عدد الصفحات: 712
...upon whatever, is immersed in it. Thus it is found, by means of a barometer (see the next chapter) that the weight of a column of air from the surface...the pressure of a column of mercury of equal base, in the tube of the barometer, of about thirty inches in height ; it therefore follows, since a cubic... | |
 | John Millard - 1813 - عدد الصفحات: 704
...direction, upon whatever is immersed in it. Thus it is found, by means of a barometer (see the next chapter) that the weight of a column of air from the surface...the pressure of a column of mercury of equal base, in the tube of the barometer, of about thirty inches in height; it therefor^ follows, since a cubic... | |
 | James Ferguson - 1814 - عدد الصفحات: 420
...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 - عدد الصفحات: 406
...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 - عدد الصفحات: 394
...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... | |
 | 1829 - عدد الصفحات: 500
...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... | |
 | Thomas Curtis (of Grove house sch, Islington) - عدد الصفحات: 426
...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... | |
 | Royal Society (Great Britain) - 1838 - عدد الصفحات: 538
...obtained (^ 2. equations (2.) and (3.)). MDCC'CXXXVHI. 2 D the quantity 5 6 being supposed to increase from the surface of the earth to the top of the atmosphere. For the sake of perspicuity, we shall, in the first place, confine our attention to an atmosphere of... | |
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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. 
