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The imbecile boy, the laughing-stock of the street, and followed by a mob hooting at him, has only just to knock once at the gate of heaven, and it swings open: while there has been many a man who can lecture about pneumatics, and chemistry, and tell the story of Farraday's theory of electrical polarization, and yet has been shut out of heaven.
On his return to England he devoted himself to the study of science, especially natural philosophy and chemistry. He was one of the founders of the Royal Society, and, by his experiments and observations added to existing knowledge, especially in regard to pneumatics.
The laws of motion of visible and tangible, or molar, matter had been worked out to a great degree of refinement and embodied in the branches of science known as Mechanics, Hydrostatics, and Pneumatics.
A series of small conduits, into which the principal tube divided, carried the liquid to the breasts, whence it spurted out, to the great admiration of the spectators, who cried out at the miracle. The sacrifice being ended, the lamps were put out, and the milk ceased to flow. Heron, of Alexandria, describes in his Pneumatics several analogous apparatus. Here is one of them.
His efforts to procure a means of making his fire burn under his little dump of ore led him first into the science which has attained a new importance in very recent times, pneumatics.
Boyle made the air-pump a means of advancing the science of pneumatics, and became the founder of experimental chymistry. Wilkins pointed forward to the science of philology in his scheme of a universal language. Sydenham introduced a careful observation of nature and facts which changed the whole face of medicine.
If now the piston be supposed to descend through five of the divisions, and the steam valve then be shut, the pressure at each subsequent position of the piston will be represented by a series, computed according to the laws of pneumatics, and which, if the initial pressure be represented by 1, will give a pressure of .5 at the middle of the stroke, and .25 at the end of it.
A prospectus is put out, with a list of sciences, we will say, Astronomy, Optics, Hydrostatics, Galvanism, Pneumatics, Statics, Dynamics, Pure Mathematics, Geology, Botany, Physiology, Anatomy, and so forth; but not a word about the mind and its powers, except what is said in explanation of the omission.
The lunar circle betokens a tempest; modern writers on pneumatics affirm every breeze that blows, from the gentle-breathing zephyr to the rude northeastern blast, to be a whirlwind; and the beautiful hues of the iris, bright with hope and promise, play upon the melting clouds in the segment of a circle.
"Why, I can't understand it very well." "Can't you?" said his father. "Well, I must admit that you are rather too young to study pneumatics." "Pneumatics?" repeated Rollo. "Yes," said his father; "that is the name of this science." "What, the science of air?" said Rollo. "Yes," said his father, "the science which treats of air, and of all other compressible and expansive fluids. But let me think.
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