Monthly magazine devoted to topics of general scientific interest.

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Excerpt from Spangenberg's Steam and Electrical Engineering in Questions and Answers: A Complete Reference Book for Engineers, Electricians, Firemen, Linemen, Wire-Men, Steam Fitters, Owners of Steam, Electric and Refrigerating Plants Treating on Stationary and Locomotive Engineering, Electricity, Compressed Air, Mechanical Refrigeration Mr. E. W. Pratt, author of the portion on Locomotive Engi neering, is master mechanic of one of the large railroads, and has made the locomotive his life-study. 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.

The mechanical engineering curriculum in most universities includes at least one elective course on the subject of reciprocating piston engines. The majority of these courses today emphasize the application of thermodynamics to engine ef?ciency, performance, combustion, and emissions. There are several very good textbooks that support education in these aspects of engine development. However, in most companies engaged in engine development there are far more engineers working in the areas of design and mechanical development. University studies should include opportunities that prepare engineers desiring to work in these aspects of engine development as well. My colleagues and I have undertaken the development of a series of graduate courses in engine design and mechanical development. In doing so it becomes quickly apparent that no suitable te- book exists in support of such courses. This book was written in the hopes of beginning to address the need for an engineering-based introductory text in engine design and mechanical development. It is of necessity an overview. Its focus is limited to reciprocating-piston internal-combustion engines – both diesel and spa- ignition engines. Emphasis is speci?cally on automobile engines, although much of the discussion applies to larger and smaller engines as well. A further intent of this book is to provide a concise reference volume on engine design and mechanical development processes for engineers serving the engine industry. It is intended to provide basic information and most of the chapters include recent references to guide more in-depth study.

Providing an overview of researchers' and practitioners’ “confessions” on the fascinating phenomenon of failed or derailed organizational health and well-being interventions and contextualizing these confessions is the aim of this innovative volume. Organizational intervention failures, paradoxes and unexpected consequences can offer a lot of rich and extremely useful practical lessons on intervention design and implementation and possibly on the design of future research on organizational interventions. This volume presents lessons learned from derailed interventions and provides possible solutions to those tasked with implementing interventions. It provides an open, practical and solutions-focused account of researchers' and practitioners' experiences in implementing organizational interventions for health and well-being.