EXPLOSIVE MATERIALS. a?? I An explosit~e, in the most general sense', is a substance capable 9A? a sudden and considerable increase of volume. This inclA·ease of volume may be the result of purely physical changes, or both physical and chelnical changes. The expansion of gases by heat, the explosive action of ,vhich is exemplified in the bursting of boilers; the expansion of gases by diminution of pressure in the s11rrol1nding n1erlinm, inu~trated in the cyclone, when the lo,v barometer area passes over a closed house; the bursting of iron shells by the freezing of ,vater confined in them; and many similar phenomena are examples of explosive effects purely physical in cl1aracter. The explosion of an explosive mixture of gases is the simplest example of bothAbout the Publisher Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.Forgotten Books' Classic Reprint Series utilizes the latest technology to...

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