Difference between revisions of ".Mzc2.NzM5Mg"
(Created page with "[ I ] XXXVIII. Account of a new Hygrometer. By M.J.A. De Luc, Citizen of Geneva, F. R. S. and Correspond. Member of the Academies of Paris and J Montpellier. Read June 1...") |
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By M.J.A. De Luc, Citizen of Geneva, | By M.J.A. De Luc, Citizen of Geneva, | ||
F. R. S. and Correspond. Member of the | F. R. S. and Correspond. Member of the | ||
| − | Academies of Paris and | + | Academies of Paris and of Montpellier. |
| − | Read June 10, IN laying before the Royal Society an | + | Read June 10, 1773 |
| − | + | IN laying before the Royal Society an | |
| − | method for measuring the | + | account of my attempts to find out a |
| + | method for measuring the moisture of the air, I think | ||
myself obliged to relate the gradual steps of my mind, | myself obliged to relate the gradual steps of my mind, | ||
| − | the obstacles I met with, the means by which I | + | the obstacles I met with, the means by which I en- |
deavoured to overcome them , the degree at which I | deavoured to overcome them , the degree at which I | ||
flatter myself to have arrived, the hopes that may be | flatter myself to have arrived, the hopes that may be | ||
entertained of farther advances, and the uses which | entertained of farther advances, and the uses which | ||
| − | may be derived from my first experiments. | + | may be derived from my first experiments. |
| − | Attempts to | + | |
| − | I. In order to proceed regularly in this investiga | + | Attempts to invent an HYGROMETER. |
| + | |||
| + | I. In order to proceed regularly in this investiga- | ||
tion, I began by examining the essential requisites in a | tion, I began by examining the essential requisites in a | ||
machine intended to measure humidity, which I found | machine intended to measure humidity, which I found | ||
to be the three following: | to be the three following: | ||
| + | |||
1st, The settling of of a fixed point, from which | 1st, The settling of of a fixed point, from which | ||
every measure of the same kind should be taken, | every measure of the same kind should be taken, | ||
| − | such, for instance, as that of boiling water in a ther | + | such, for instance, as that of boiling water in a ther- |
| − | mometer, when the barometer is at a | + | mometer, when the barometer is at a certain height. |
2d, Degrees equally determined, or comparable, | 2d, Degrees equally determined, or comparable, | ||
| − | in different hygrometers, | + | in different hygrometers, such as are in the thermo- |
| − | + | meter, | |
| − | |||
Latest revision as of 16:15, 13 September 2017
[ I ]
XXXVIII. Account of a new Hygrometer. By M.J.A. De Luc, Citizen of Geneva, F. R. S. and Correspond. Member of the Academies of Paris and of Montpellier.
Read June 10, 1773 IN laying before the Royal Society an account of my attempts to find out a method for measuring the moisture of the air, I think myself obliged to relate the gradual steps of my mind, the obstacles I met with, the means by which I en- deavoured to overcome them , the degree at which I flatter myself to have arrived, the hopes that may be entertained of farther advances, and the uses which may be derived from my first experiments.
Attempts to invent an HYGROMETER.
I. In order to proceed regularly in this investiga- tion, I began by examining the essential requisites in a machine intended to measure humidity, which I found to be the three following:
1st, The settling of of a fixed point, from which every measure of the same kind should be taken, such, for instance, as that of boiling water in a ther- mometer, when the barometer is at a certain height. 2d, Degrees equally determined, or comparable, in different hygrometers, such as are in the thermo- meter,
