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Sinopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1860 Excerpt: ...in a state of combustion, and is made incandescent by the intense heat of the combustion. Two gases are needed to produce it, one of which must be combustible, and the other, of course, a supporter of combustion. The action is mutual between them;--neither will burn alone;--and a jet of either will burn in the other. In the common lamp or candle, the combustible gases are supplied from the oil, or tallow, which is gradually raised, by the capillary action of the wick, into the flame, where it is decomposed by the heat. As these gases, thus produced, escape from the wick, and come in contact with the oxygen of the atmosphere, the two combine, producing the phenomena of light and heat, with which all are familiar. A careful inspection of the flame of a / lamp or candle, as it burns quietly, will show, that it is composed of three parts, viz:--1st, a central part, a, surrounding the wick, and extending a little above it, of gaseous matter that has emerged from the wick, and is making its way outward to the atmosphere, which it has not yet reached, and therefore has not yet become ignited; 2d, the bright part of the flame, 6 6, which, in the form of a conical shell, incloses the part a, and consists of gaseous matter in a state of rapid combustion, the combustible particles, as they reach the air, uniting Questions.--311. What is ordinarily termed combustion? Must therr It be two substances to produce combustion? What are they called? What is flame 1 h the common lamp or candle, how are the combustible gases supplied? Of what several parts is the flame of a candle composed? What is the dark interim-part? Gas from centre of Flame. with its oxygen, with the evolution of much light and heat; aDd, 3d, the part, cc, outside of the part last mentioned, composed chief...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1860 Excerpt: ...in a state of combustion, and is made incandescent by the intense heat of the combustion. Two gases are needed to produce it, one of which must be combustible, and the other, of course, a supporter of combustion. The action is mutual between them;--neither will burn alone;--and a jet of either will burn in the other. In the common lamp or candle, the combustible gases are supplied from the oil, or tallow, which is gradually raised, by the capillary action of the wick, into the flame, where it is decomposed by the heat. As these gases, thus produced, escape from the wick, and come in contact with the oxygen of the atmosphere, the two combine, producing the phenomena of light and heat, with which all are familiar. A careful inspection of the flame of a / lamp or candle, as it burns quietly, will show, that it is composed of three parts, viz:--1st, a central part, a, surrounding the wick, and extending a little above it, of gaseous matter that has emerged from the wick, and is making its way outward to the atmosphere, which it has not yet reached, and therefore has not yet become ignited; 2d, the bright part of the flame, 6 6, which, in the form of a conical shell, incloses the part a, and consists of gaseous matter in a state of rapid combustion, the combustible particles, as they reach the air, uniting Questions.--311. What is ordinarily termed combustion? Must therr It be two substances to produce combustion? What are they called? What is flame 1 h the common lamp or candle, how are the combustible gases supplied? Of what several parts is the flame of a candle composed? What is the dark interim-part? Gas from centre of Flame. with its oxygen, with the evolution of much light and heat; aDd, 3d, the part, cc, outside of the part last mentioned, composed chief...
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