A Course of Instruction in Ordnance and Gunnery

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Excerpt from A Course of Instruction in Ordnance and Gunnery: Prepared for the Use of the Cadets of the United States Military Academy 1. General theory. Gunpowder and the compositions of pyrotechny are the means used, in modern warfare, to propel projectiles, explode mines, destroy ships and buildings, and furnish light and signals for the operations of an army at night. They are simply mechanical mixtures of substances which give out light, heat, and gas in their combustion, or chemical union with each other. The two classes of substances generally used for these purposes are the nitrates and chlorates on one hand, and charcoal, sulphur, antimony, &c., , on the other. The former class contains a large amount of oxygen, which is a strong supporter of combustion, and the latter embraces those substances which have a powerful affinity for it. Explosion is a phenomenon arising from the sudden enlargement of the volume of a body, as in the case of combustion, when a solid body is rapidly converted into one of vapor or gas. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.