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Excerpt from Note on the Resistance of Materials as Affected by Flow and by Rapidity or DistortionIt is evident that, whatever the character of the material and What ever the velocity of rupture, the effect of the inertia of the mass, and of particles not immediately affected by a Shock, remains, and that its effect is always to reduce the resilience of the metal and its resistance to shock and this reduction may, in many cases, more than comp...

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The People's War lifts the Stalinist veil of secrecy to probe a side of World War II that has been almost completely obscured: the experiences of the Soviet people themselves. Going beyond dry and faceless military accounts of the eastern front of the "Great Patriotic War" and the Soviet state's one-dimensional "heroic People", this volume explores how ordinary citizens responded to the war, to Stalinist leadership, and to Nazi invasion.Drawin...

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Excerpt from Friction and Lubrication: Determinations of the Laws and Coëfficients of Friction by New Methods and With New Apparatus The lectures from which the following monograph is condensed, have grown out of an attempt to comply v/ith the request of the Committee of the Master Car-builders Association to present the well-known facts, and others that had been determined by the lecturer relating to the subject, in a lecture at the rooms of...

Excerpt from Report on Cold-Rolled Iron and Steel, 1878, Vol. 1 The investigations here reported were undertaken by the undersigned at the request of Messrs. Jones & Laughlins, proprietors of the American Iron Works, Pittsburgh, in the summer of the year 1877, and have been continued almost uninterruptedly to date. They constitute the most complete research upon the properties of any one of the many metals used in engineering construction tha...

Excerpt from Materials of Engineering, Vol. 3 1. The knowledge of metals possessed by the early races of mankind was of the most inexact and unsatisfactory character. They were probably led to seek a method of utilizing them, first, by the demands of their fighting classes. Their structures, there implements of agriculture and war, and their domestic utensils were, in the earliest stages of their race-history, of wood, bone and stone. All rac...

Excerpt from Stationary Steam Engines, Simple and Compound: Especially as Adapted to Light and Power Plants On reviewing the whole history of the engine to date, it will be seen that progress continues in the directions al ready pointed Out and towards still higher steam-pressures, higher speeds of piston and of rotation, increased ratios of expansion in multiple-cylinder engines, and with constant reduction of the now well-understood waste w...

Excerpt from Stationary Steam Engines: Especially as Adapted to Electric Lighting Purposes The latest addition to this little work is the final chapter on'the compound engine and the principles of its design, construction, and operation in successful competition with the Older forms. The importance of this new departure in the construction of small engines, for electric lighting and similar purposes, may be imagined when it is noted that in s...

Excerpt from A Treatise Of Iron And Steel, Vol. 2: Materials Of Engineering 1. Comparison with other Materials of Construction. - As has already been seen, the stones, both natural and artificial, have but limited application in mechanical engineering. While their hardness, density, infusibility, and especially their immunity from injury by oxidation, are all valuable qualities, which fit them peculiarly for use in foundations, in architectur...

Excerpt from A History of the Growth, of the Steam-Engine Greenwood's excellent translation of Hero, as edited by Bennett Woodcroft (london, can be consulted by those who are curious to learn more of that interesting Old Greek treatise. 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 Book...

Excerpt from A Treatise on Friction and Lost Work: In Machinery and Millwork To make the work complete, it has been attempted to ex bibit, as concisely as possible, the principles Involved in the transmission of power and the performance of work, and in the waste Of power by friction. It has also been attempted to show what are the methods Of reducing such wastes, how to determine the purity and the intrinsic values of the unguents, and final...