 | Thomas Dick - 1799 - 200 pàgines
...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 pàgines
...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 pàgines
...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 pàgines
...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 pàgines
...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 pàgines
...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 pàgines
...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 pàgines
...pressure amounting to about fifteen pounds on every square inch of the upper surface of the piston J from which we may infer that a column of air, having...explaining. In this machine the weight of the atmosphere i< used as a first mover in pressing a piston to the bottom of a cylinder. 8. But there is a still... | |
 | William Martin - 1832 - 504 pàgines
...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... | |
 | Royal Society (Great Britain) - 1838 - 538 pàgines
...of the equation which holds in an atmosphere of dry air ; namely, that the integral being extended from the surface of the earth to the top of the atmosphere, is the anapi lytical expression of *-j, or of the height of the homogeneous atmosphere, that is, 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. 
