Difference between revisions of ".Mzc2.NzQ5Mg"
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97. I shall not attribute intirely to the same cause, | 97. I shall not attribute intirely to the same cause, | ||
| − | the great difference observed between my | + | the great difference observed between my hygrometers, |
| − | + | when one was exposed to the fun, while the | |
other stood in the shade. The immediate action of | other stood in the shade. The immediate action of | ||
the solar rays, or of the luminous heat, produces a | the solar rays, or of the luminous heat, produces a | ||
variety of effects which, as I have said before, do | variety of effects which, as I have said before, do | ||
not appear to follow the same laws as those of dark | not appear to follow the same laws as those of dark | ||
| − | heat. And if I may be allowed to propose a | + | heat. And if I may be allowed to propose a conjecture |
| − | + | upon this particular point, before fuller experiments | |
| − | + | have been made, it should seem, that the | |
immediate action of the solar rays must occasion a | immediate action of the solar rays must occasion a | ||
greater evaporation than what is produced by dark | greater evaporation than what is produced by dark | ||
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the thermometers was only a degree and a quarter | the thermometers was only a degree and a quarter | ||
less; which leads us to conceive how many apparently | less; which leads us to conceive how many apparently | ||
| − | small causes may contribute to produce sensible | + | small causes may contribute to produce sensible differences |
| − | + | in the distribution of the discrete humor. | |
98. Another use to be made or these observations | 98. Another use to be made or these observations | ||
is, to compare them with those that I have made in the | is, to compare them with those that I have made in the | ||
| − | mountains of Sixt ; in order to form a better | + | mountains of Sixt ; in order to form a better judgment |
| − | + | of the proportion between the different degrees | |
| − | + | of humidity, in the superior and inferior parts | |
of the atmosphere My hygrometer, held in the | of the atmosphere My hygrometer, held in the | ||
shade upon the summit of Buet, rose to 132 1/2, | shade upon the summit of Buet, rose to 132 1/2, | ||
and was not yet stationary. This is pretty nearly | and was not yet stationary. This is pretty nearly | ||
| − | the greatest degree of dryness observed in the | + | the greatest degree of dryness observed in the hygrometer exposed to the fun in the garden ; while |
| − | + | H | |
| − | H the | + | |
| + | [[catchword]] the [[/catchword]] | ||
Latest revision as of 08:54, 20 October 2018
[ 49 ]
97. I shall not attribute intirely to the same cause, the great difference observed between my hygrometers, when one was exposed to the fun, while the other stood in the shade. The immediate action of the solar rays, or of the luminous heat, produces a variety of effects which, as I have said before, do not appear to follow the same laws as those of dark heat. And if I may be allowed to propose a conjecture upon this particular point, before fuller experiments have been made, it should seem, that the immediate action of the solar rays must occasion a greater evaporation than what is produced by dark heat, even when they ho!J the thermometer at the same height. But let the cause be as it will, we see by this experiment that in a section of air about a foot wide, through which the solar rays did not immediately pass, the action of the humor upon the hygrometer was 233 degrees greater than in the place round about ; though that of the heat upon the thermometers was only a degree and a quarter less; which leads us to conceive how many apparently small causes may contribute to produce sensible differences in the distribution of the discrete humor.
98. Another use to be made or these observations is, to compare them with those that I have made in the mountains of Sixt ; in order to form a better judgment of the proportion between the different degrees of humidity, in the superior and inferior parts of the atmosphere My hygrometer, held in the shade upon the summit of Buet, rose to 132 1/2, and was not yet stationary. This is pretty nearly the greatest degree of dryness observed in the hygrometer exposed to the fun in the garden ; while H
catchword the /catchword
