Difference between revisions of ".Mzc2.NzUwMg"
(Created page with "[ 54 ] what has already been observed is sufficient to shew us that the warmer the water is, the more it dilates the ivory (though we saw that the mercury rose in the hygr...") |
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hence, I fancy may be drawn this general conse- | hence, I fancy may be drawn this general conse- | ||
quence, already indeed foreseen, namely, that in an | quence, already indeed foreseen, namely, that in an | ||
− | + | equal acting quantity, the warmer the humor is, the | |
− | more it | + | more it separates the particles of those bodies which |
it pervades. | it pervades. | ||
+ | |||
107. I say, in an equal acting quantity, and this is | 107. I say, in an equal acting quantity, and this is | ||
one of the object which will probably furnish us | one of the object which will probably furnish us | ||
− | with a variety of most | + | with a variety of most useful knowledge, at the |
same time that it is most likely to give the greatest | same time that it is most likely to give the greatest | ||
− | exercise to the genius and | + | exercise to the genius and attention of natural phi- |
losophers. The forementioned experiment proves, | losophers. The forementioned experiment proves, | ||
that the warmer the water is, the more it dilatates the | that the warmer the water is, the more it dilatates the | ||
ivory pipe of the hygrometer, and the fame thing I | ivory pipe of the hygrometer, and the fame thing I | ||
make no doubt happens with the discrete humor. | make no doubt happens with the discrete humor. | ||
− | On the other hand, the evaporation, being | + | On the other hand, the evaporation, being cer- |
− | tainly greater in | + | tainly greater in summer than in winter, there must |
of course be more vapours in the air, in the first | of course be more vapours in the air, in the first | ||
− | of these seasons than in the latter. These then, | + | of these seasons than in the latter. These then, as |
it appears, are the two circumstances most likely to | it appears, are the two circumstances most likely to | ||
− | make the hygrometer fall in summer ; a greater | + | make the hygrometer fall in summer ; a greater de- |
− | gree of humor in the air,and an encrease of heat. | + | gree of humor in the air, and an encrease of heat. |
And yet l have already experienced that the mean | And yet l have already experienced that the mean | ||
− | height of the | + | height of the hygrometer is greater in summer than in |
the other seasons I found my first hygrometer, | the other seasons I found my first hygrometer, | ||
− | which was made in winter, too short in the | + | which was made in winter, too short in the sum- |
mer; but it would be of a sufficient length now | mer; but it would be of a sufficient length now | ||
− | that we are in | + | that we are in autumn. The mean height of the |
four new ones is already (the beginning of Novem- | four new ones is already (the beginning of Novem- | ||
ber) | ber) |
Revision as of 15:39, 3 December 2017
[ 54 ] what has already been observed is sufficient to shew us that the warmer the water is, the more it dilates the ivory (though we saw that the mercury rose in the hygrometer after having sunk for a moment). From hence, I fancy may be drawn this general conse- quence, already indeed foreseen, namely, that in an equal acting quantity, the warmer the humor is, the more it separates the particles of those bodies which it pervades.
107. I say, in an equal acting quantity, and this is one of the object which will probably furnish us with a variety of most useful knowledge, at the same time that it is most likely to give the greatest exercise to the genius and attention of natural phi- losophers. The forementioned experiment proves, that the warmer the water is, the more it dilatates the ivory pipe of the hygrometer, and the fame thing I make no doubt happens with the discrete humor. On the other hand, the evaporation, being cer- tainly greater in summer than in winter, there must of course be more vapours in the air, in the first of these seasons than in the latter. These then, as it appears, are the two circumstances most likely to make the hygrometer fall in summer ; a greater de- gree of humor in the air, and an encrease of heat. And yet l have already experienced that the mean height of the hygrometer is greater in summer than in the other seasons I found my first hygrometer, which was made in winter, too short in the sum- mer; but it would be of a sufficient length now that we are in autumn. The mean height of the four new ones is already (the beginning of Novem- ber)