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A measuring-rod has been provided for the depths of space by the ascertainment of the sun's distance within a three-hundredth part of that body's diameter. The existence of a cosmic ether, a resisting medium, has been established, and its retarding influence calculated. Many of the nebulae have been reduced, and others proved to be in a gaseous condition, like comets.
Now it happens that if we make use for the estimation of temperatures, of the phenomena of dilatation under a constant pressure, or of the increase of pressure in a constant volume of a gaseous body, we obtain a scale very near the absolute, which almost coincides with it when the gas possesses certain qualities which make it nearly what is called a perfect gas.
As soon as it began to cool down a little, the heavier materials naturally sank towards the centre, while the lighter, now represented by the ocean and the atmosphere, floated in a gaseous condition on the outside.
They testified, in effect, that nothing save the inhalation of some gaseous irritant could have produced such a general congestion, and that the patch of tissue referred to was insufficient to account for the amount of congestion present. Dr. Donlin could not testify what the proximate cause of death was, but was firm in his opinion that no cause for it was observable in the other vital organs.
Having once adopted the Goethean way of thinking-in-polarities, we may feel sure that there is somewhere in nature a phenomenon which represents the polar opposite of the levity-gravity relationship peculiar to the gaseous state.
Or the sleep might have been simply a coincidence and produced by emanations either gaseous or from plants, natural causes which had happened to coincide in their effects with the other manifestations. We made some rough and ready but effective respirators. "As dusk fell we looked over our weapons. Edith was an excellent shot with both rifle and pistol.
The system was thus developed into the one followed at the present time. The gases thus become mixed with nitrous fumes or gaseous oxides of nitrogen, and, after cooling, are ready for mixing with steam or water spray in the lead chambers in which the vitriol is produced.
Gaseous substances mingle and penetrate each other on the least movement; and a uniformity of their mixture may have taken place in the lapse of ages, unless we believe them to possess a repulsive action of which there is no example in those substances we can subject to our observations.
But an easy, though rough, chemical proof of the constituents of wood, can be made by placing a few pieces of wood in a medium-sized test-tube, and holding it over a flame. In a short time a certain quantity of steam will be driven off, next the gaseous constituents of wood, and finally nothing will be left but a few pieces of black brittle charcoal.
The cap is thereby raised to a high temperature; and the platinum wire sheath becoming incandescent radiates the light. The gaseous mixture, by coming first in contact with the copper cone and then with the refractory cap, becomes raised to an exceedingly high temperature before it is consumed.
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