The present book describes the development history of turbojet engines, mainly in the web-type triangle Great Britain (USA) - Germany - Switzerland from early beginnings in the 1920s up to the first practical usage in the 1950s, before the still unbroken, grand impact of aero propulsion technology on global air traffic started. interconnections are highlighted, including the considerable impact of axial-flow compressor design know-how of the Swiss/German company BBC Brown Boveri & Cie. on both sides. The author reveals significant undercurrents which led to a considerable exchange, and thus change in understanding of the technical-historical perspective, especially in the decisive years before WWII, and thus closes gaps in the unilateral views of this ground-breaking technical advancement. The old ‘Whittle vs. von Ohain Saga’ is not repeated in full, but addressed in sufficient detail to understand the considerably enlarged narrative scope.
The present book describes the development history of turbojet engines, mainly in the web-type triangle Great Britain (USA) - Germany - Switzerland from early beginnings in the 1920s up to the first practical usage in the 1950s, before the still unbroken, grand impact of aero propulsion technology on global air traffic started. interconnections are highlighted, including the considerable impact of axial-flow compressor design know-how of the Swiss/German company BBC Brown Boveri & Cie. on both sides. The author reveals significant undercurrents which led to a considerable exchange, and thus change in understanding of the technical-historical perspective, especially in the decisive years before WWII, and thus closes gaps in the unilateral views of this ground-breaking technical advancement. The old ‘Whittle vs. von Ohain Saga’ is not repeated in full, but addressed in sufficient detail to understand the considerably enlarged narrative scope.
This book tells the story of the power generation gas turbine from the perspective of one of the leading companies in the field over a period of nearly 100 years, written by an engineer. Especially in times of imminent global economic crises it appears to be worthwhile to reflect on real economic values based on engineering ingenuity and enduring management of technological leadership. Though the book is primarily designed as a technical history of the BBC/ABB/Alstom power generation gas turbines, its scope is sufficiently broad to cover general development trends, including parallel competitor activities. A special benefit is the historical breakdown to the gas turbine component level, so that the book actually outlines the development of axial compressors from early beginnings, the progress in combustion technology towards extraordinary low emission values and that of axial turbines with special emphasis on early turbine cooling innovations. The sheer length of certain engineering developments over several decades allows interesting historic observations and deductions on inherent business mechanisms, the effects of technology preparations and organisational consequences. A look into the mirror of the past provides revelations on the impact of far-reaching business decisions. 2017 Winner of the Historian Engineer Award of the ASME (American Society of Mechanical Engineers
God and Humanity in Auschwitz synthesizes the findings of research developed over the last thirty years on the rise of anti-Semitism in our civilization. Donald J. Dietrich sees the Holocaust as a case study of how prejudice has been theologically enculturated. He suggests how it may be controlled by reducing aggressive energy before it becomes overwhelming. Dietrich studies the recent responses of Christian theologians to the Holocaust and the Jewish theological response to questions concerning God's covenant with Israel, which were provoked by Auschwitz. Social science has dealt with the psychosocial dynamics that have supported genocide and helps explain how ordinary persons can produce extraordinary evil. Dietrich shows how this research, combined with theological analyses, can help reconfigure theology itself. Such an approach may serve to help dissolve anti-Semitism, to aid in constructing such positive values as respect for human dignity, and to point the way to restricting future outbreaks of genocide. God and Humanity in Auschwitz surveys which religious factors created a climate that permitted the Holocaust. It also illuminates what social science has to tell us about developing a strategy that, when institutionally implemented, can channel our energies away from sanctioned murder toward a more compassionate society. The book has proven to be an essential resource for theologians, sociologists, historians, and political theorists.
This volume describes the fascinating and sometimes amazing story of the prestigeous Pulitzer Prizes in all journalistic award categories. On the basis of the confidential and unpublished jury reports it was made possible to reconstruct the decision-making discussions within the committees to confirm or prevent prize-winners by majority votings. The book also makes clear that Pulitzer awards during more than eight decades went to a broad spectrum of American newspapers. Heinz-Dietrich Fischer, EdD, PhD, is Professor Emeritus at the Ruhr-University of Bochum, Germany.
Volume 14 "includes bible studies, sermons, and lectures on homiletics, pastoral care, and catechesis, giving a moving and up-close portrait of the Confessing Church in these crucial years"--Publisher description.
The completion of the Dietrich Bonhoeffer Works, the definitive English translation of the Critical Edition, represents a milestone in theological scholarship. This wonderful series is a translation from the German editions of Dietrich Bonhoeffer Werke. The product of over twenty years of dedicated labor, the comprehensive and thoroughly-annotated sixteen-volume series will be the essential resource that generations of scholars will rely upon to understand the life and work of this seminal thinker in the wider frame of twentieth-century thought and history. Now, the editorial team has offered an essential companion to the entire series in the form of an index volume.
Then came the crisis of 1933." This is Bonhoeffer's own phrase in a letter that documents a turning point in his own life as well as that of the nation. Of Bonhoeffer's own life at this time, his biographer writes, "The period of learning and roaming" from 1928 until 1931 "had come to an end" as the young lecturer, age 26, began to teach "on a faculty whose theology he did not share" and to preach "in a church whose self-confidence he regarded as unfounded." Bonhoeffer was becoming part of a society "that was moving toward political, social, and economic chaos.
Principles of Quantum Electronics focuses on the concept of quantum electronics as the application of quantum theory to engineering problems. It examines the principles that govern specific quantum electronics devices and presents their theoretical applications to typical problems. Comprised of 10 chapters, this book starts with an overview of the Dirac formulation of quantum mechanics. This text then considers the derivation of the formalism of field quantization and discusses the properties of photons and phonons. Other chapters examine the interaction between the electromagnetic field and charged particles. This book discusses as well the interaction of radiation with free and bound electrons, with focus on the spontaneous and stimulated emission of radiation by bound electrons. The final chapter provides the investigation that Maxwell's theory can be regarded as the quantum theory of a single photon. This book is a valuable resource for graduate students, specialists, and engineers who are interested in the field of quantum electrodynamics.
This book tells the story of the power generation gas turbine from the perspective of one of the leading companies in the field over a period of nearly 100 years, written by an engineer. Especially in times of imminent global economic crises it appears to be worthwhile to reflect on real economic values based on engineering ingenuity and enduring management of technological leadership. Though the book is primarily designed as a technical history of the BBC/ABB/Alstom power generation gas turbines, its scope is sufficiently broad to cover general development trends, including parallel competitor activities. A special benefit is the historical breakdown to the gas turbine component level, so that the book actually outlines the development of axial compressors from early beginnings, the progress in combustion technology towards extraordinary low emission values and that of axial turbines with special emphasis on early turbine cooling innovations. The sheer length of certain engineering developments over several decades allows interesting historic observations and deductions on inherent business mechanisms, the effects of technology preparations and organisational consequences. A look into the mirror of the past provides revelations on the impact of far-reaching business decisions. 2017 Winner of the Historian Engineer Award of the ASME (American Society of Mechanical Engineers
God and Humanity in Auschwitz synthesizes the findings of research developed over the last thirty years on the rise of anti-Semitism in our civilization. Donald J. Dietrich sees the Holocaust as a case study of how prejudice has been theologically enculturated. He suggests how it may be controlled by reducing aggressive energy before it becomes overwhelming. Dietrich studies the recent responses of Christian theologians to the Holocaust and the Jewish theological response to questions concerning God's covenant with Israel, which were provoked by Auschwitz. Social science has dealt with the psychosocial dynamics that have supported genocide and helps explain how ordinary persons can produce extraordinary evil. Dietrich shows how this research, combined with theological analyses, can help reconfigure theology itself. Such an approach may serve to help dissolve anti-Semitism, to aid in constructing such positive values as respect for human dignity, and to point the way to restricting future outbreaks of genocide. God and Humanity in Auschwitz surveys which religious factors created a climate that permitted the Holocaust. It also illuminates what social science has to tell us about developing a strategy that, when institutionally implemented, can channel our energies away from sanctioned murder toward a more compassionate society. The book has proven to be an essential resource for theologians, sociologists, historians, and political theorists.
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