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Gas stoves are made in many forms, and in a few cases can be employed with advantage; but I believe they are more expensive than a coal fire, and it is most difficult to prevent the products of combustion finding their way into the dwellings.
The cylinders of this first Wright engine were separate castings of steel, and only the barrels were jacketed, this being done by fixing loose, thin aluminium covers round the outside of each cylinder. The combustion head and valve pockets were cast together with the cylinder barrel, and were not water cooled.
Again, a part of the pure air of the atmosphere is continually consumed in combustion and respiration; living vegetables emit this principle during their growth; nothing appears more accidental than the proportion of vegetable to animal life on the surface of the earth, yet they are perfectly equivalent, and the balance of the sexes, like the constitution of the atmosphere, depends upon the principles of an unerring intelligence.
He only knew that the combustion was instantaneous and complete, and before the cry had died from his lips, not only the guard, but the straw mattress on which he had been sitting, and the loose strips of paper hanging from the walls, and the torn cloth ceiling above were in flames. "Help! Help! Fire! Fire!"
It ignites at 170 degrees in place of 240, and its combustion is so rapid that one may set light to it on the top of the ordinary powder, without the latter having time to ignite." "Perfect!" exclaimed the major. "Only it is more expensive." "What matter?" cried J. T. Maston. "Finally, it imparts to projectiles a velocity four times superior to that of gunpowder.
See how the flame is drawing upwards, presently fading, and at last going out. And going out, why? Not because it wants air merely, for the jar is as full now as it was before; but it wants pure, fresh air. The jar is full of air, partly changed, partly not changed; but it does not contain sufficient of the fresh air which is necessary for the combustion of a candle.
Anything which will increase the temperature of the flame will also increase the illuminating power, provided, of course, that the increase in temperature is not obtained at the expense of the too rapid combustion of the hydrocarbons.
Grandees was your own word, wife. They be not to call grandees; but I reckon you'd be sorry not to treat 'em civil, when I tell you their name is Talbot, mother and sister to our young Talbot, of Eton; he that paid me so handsome for the hunter this very morning. Landlady. Mercy! is that all? What a combustion for nothing in life! Finsb.
To-day they served another purpose, for as the sun had heated the little cabin almost to the point of combustion, curling up the long dry shingles, and starting aromatic tears from the green pine beams, Tommy led Johnson into one of the larger openings, and with a sense of satisfaction threw himself panting upon its rocky floor.
To many of us now, computers, silicon chips, data processing, cybernetics, and all the other innovations of the dawning high technology age are as mystifying as the workings of the combustion engine must have been when that first Model T rattled down Main Street, U.S.A. But as surely as America's pioneer spirit made us the industrial giant of the 20th century, the same pioneer spirit today is opening up on another vast front of opportunity, the frontier of high technology.
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