Fourteen of Walker Evans's evocative photographs of Brooklyn Bridge, most of which have never been published, appear in this edition of Alan Trachenberg's Brooklyn Bridge: Fact and Symbol. In the new afterword Trachenberg explores the history of Hart Crane's The Bridge, especially the poem's integral relationship with the powerful photography of Evans."[Brooklyn Bridge] is familiar in so many movies, in so many stage sets and, as Mr. Trachtenberg shows in this brilliant . . . book, it is at least as much a symbol as a reality. . . . Mr. Trachtenberg is always exciting and illuminating."—Times Literary Supplement "The book is a skillful and insightful synthesis of materials about Brooklyn Bridge from such diverse fields as history, engineering, literature and art. Essentially it asks the question of why Brooklyn Bridge achieved such great impact on the nineteenth century American imagination and why it has continued to have a significant impact on twentieth century art and literature. In addition to its exploration of the bridge's symbolic significance, which includes perceptive analyses of such particular works as Hart Crane's great poem cycle and the paintings of artists like Joseph Stella, the book also includes a solidly researched account of the conception, planning and construction of the bridge. Trachtenberg's account of the intellectual and cultural sources of the bridge is particularly fascinating in its demonstration of the convergence of many different philosophical and ideological currents of the time around this great engineering enterprise, illustrating as effectively as any discussion I know the complex interplay of ideas and material culture."—John G. Cawelti, University of Chicago"Alan Trachtenberg's Brooklyn Bridge is a fascinating story, the philosophic genesis of the idea in Europe, John Roebling's heroic effort to translate it into masonry and steel, and the meanings that Americans attached to the physical object as an emblem of their aspirations."—Leo Marx, Amherst College, author of The Machine in the Garden

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Computer Control and Human Error presents accounts of various incidents at computer-controlled plants. These incidents include equipment and software faults; treating the computer as a "black box"; misjudging the way operators respond to the computer; errors in the data entry; failure to inform operators of changes in data or programs; and unauthorized interference with peripheral equipment. The discussion then turns to the use of hazard and operability studies (Hazops) to prevent or reduce errors in computer-controlled plants. The book describes the conventional Hazop as used in the process industry and an overview of the different Chazop frameworks/guidelines suggested by engineers and researchers. It then presents new Chazop methodology which is based on incident analysis. The final chapter presents reasons for failures in computerized systems, each of which is illustrated with an example. Most of the examples did not cause an actual safety problem, simply because they occurred within systems that are not safety-related. Some of these examples appear in the literature; others are from personal experience or from private communications.

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.