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Something, such as liquid, gas, or solid, must be set in motion to produce sound, and for the purpose of science the air we breathe may be considered a gas, being composed of two. Not only must the object, either solid, liquid, or gaseous, be in motion to produce sound, but the air surrounding the vibrating body must also be moving in unison with it.
The difficulties overcome in the development of this invention were enormous, but the final triumph was complete. The principle of this furnace consists in utilising the heat of the products of combustion to warm up the gaseous fuel and air which enters the furnace.
I have seen all this played over again in adult life, the same delightful bewilderment semi-emotional belief in listening to the gaseous praises of this or that fantastic system, that I found in the pleasing mirages conjured up for me by the ragged old volume I used to pore over in the southeast attic-chamber.
In the rocks of the larger intrusive masses one may see with a powerful microscope exceedingly minute cavities, to be counted by many millions to the cubic inch, in which the gaseous water which the mass contained was held imprisoned under the immense pressure of the overlying rocks.
What are the experimental bases of our Christianity? and whereby shall we know that we are of the truth and assure our hearts before Him? Some time ago, in discussing the definite points and peculiar characteristics of Christian life and experiences, we took as a comparison the changes of state in a material body, from solid to liquid, and from liquid to gaseous.
On the other hand, "homotheism," the anthropomorphic representation of God, degrades this loftiest cosmic idea to that of a "gaseous vertebrate." Of the various systems of pantheism which for long have given expression more or less clearly to the monistic conception of God, the most perfect is certainly that of Spinoza.
The extreme internal mobility betrayed by Carrington's and Spörer's observations led to the inference that the matter composing the sun was mainly or wholly gaseous. This had already been suggested by Father Secchi a year earlier, and by Sir John Herschel in April, 1864; but it first obtained general currency through Faye's more elaborate presentation.
There was no real heart in it, nothing to give it consistence; the hot passion of a few men insulted, the variable gaseous excitement of wronged commoners, and the ambition if it was ambition of one enraged and affronted old man, without an heir to follow him or anything that could make it worth his while to conquer. An enterprise more wild was never undertaken.
But a substance neither solid, nor fluid, nor yet gaseous; neither coloured nor colourless; neither singular nor plural; without form and void, without even extension what is it? not something, but nothing; a nonentity or non-existence.
But when the same vessel was clothed with an equal thickness of raw silk, water at the same heat and under the same process required 1,264 seconds before it reached the same decrease of temperature. It was also found by Sir Humphry Davy that even metals became non-conductors when their cohesion was destroyed by reducing them to the gaseous state.
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