Difference between revisions of ".Mzc2.NzQ5MA"
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only arise from a difference in the cause that acts | only arise from a difference in the cause that acts | ||
upon them. | upon them. | ||
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95. We may form our ideas of the manner in | 95. We may form our ideas of the manner in | ||
which the invisible humor distributes itself; from | which the invisible humor distributes itself; from | ||
| − | that in which h all kinds of visible vapours are | + | that in which h all kinds of visible vapours are diffused |
| − | + | We see them seperate re-unite, fly off from | |
certain places, rush into others, and in short yield | certain places, rush into others, and in short yield | ||
| − | to every impression of the air. The motion | + | to every impression of the air. The motion peculiar |
| − | + | to their own particles, which I look upon | |
| − | as the cause of their elasticity*, is not sufficiently | + | as the cause of their elasticity*, is not sufficiently rapid, |
| − | + | and the vapours themselves arc too thick to | |
overcome always the contrary motion of the air. | overcome always the contrary motion of the air. | ||
This, I believe, is what contributes the chief difference | This, I believe, is what contributes the chief difference | ||
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think, that part of the difference observed between | think, that part of the difference observed between | ||
my hygrometers, even before sunrise, may have | my hygrometers, even before sunrise, may have | ||
| − | been owing to the unequal distribution of the | + | been owing to the unequal distribution of the humor, |
| − | + | though the two instruments were only at the | |
| − | distance of a foot from each other, without the | + | distance of a foot from each other, without the interposition |
| − | + | of any solid body. | |
*The system I adopted on that point may be found in my | *The system I adopted on that point may be found in my | ||
work upon the Modifications of the atmosphere. | work upon the Modifications of the atmosphere. | ||
| − | 97. I | + | |
| + | [[catchword]] 97. I [[/catchword]] | ||
Latest revision as of 08:52, 20 October 2018
[ 48 ]
only arise from a difference in the cause that acts upon them.
95. We may form our ideas of the manner in which the invisible humor distributes itself; from that in which h all kinds of visible vapours are diffused We see them seperate re-unite, fly off from certain places, rush into others, and in short yield to every impression of the air. The motion peculiar to their own particles, which I look upon as the cause of their elasticity*, is not sufficiently rapid, and the vapours themselves arc too thick to overcome always the contrary motion of the air. This, I believe, is what contributes the chief difference between vapours, and the igneous fluid, as far as relates to the power of putting themselves into a state of equilibrium in the air, which is moving. The current of air carried towards a chimney which has fire in it, frees the room from smoke, and is but a very sight impediment to the diffusion of the heat through it.
96. Though the invisible vapours by reason of their excessive thinness are more capable of being put in equilibrium in the air than the visible ones, they are very far from having this property in as great degree as the heat Which leads me to think, that part of the difference observed between my hygrometers, even before sunrise, may have been owing to the unequal distribution of the humor, though the two instruments were only at the distance of a foot from each other, without the interposition of any solid body.
- The system I adopted on that point may be found in my
work upon the Modifications of the atmosphere.
catchword 97. I /catchword
