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Of all the developments in twentieth century physics, none has given rise to more heated debates than the changes in our understanding of science precipitated by the ``quantum revolution''. In this revolution, Niels Bohr's dramatically non-classical theory of the atom proved to be the springboard from which the new atomic physics drew it's momentum. Furthermore, Bohr's contribution was crucial not only because his interpretation of quantum mechanics became the most widely accepted view but also because in his role as educator and spokesman for atomic physics Bohr was very much the patron spirit of the entire quantum revolution. The conceptual framework which he proposed to provide a new viewpoint for understanding the quantum theoretical description of atomic systems became for most of this century the dominant outlook of countless productive experimental and theoretical physicists. He called this new framework ``complementarity''.

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Part I is devoted to Niels Bohr's mission to promote an "open world" between nations, that is, full sharing of information in the scientific and technical, as well as in the cultural spheres the scientific and technical, as well as in the cultural spheres.He started his mission immediately upon escaping from Nazi-occupied Denmark in the autumn of 1943, when he realized that the bomb was on the way to becoming a reality.As he wrote in 1944, he considered that the existence of the atomic bomb "would not only seem to necessitate but should also, due to the urgency of mutual confidence, facilitate" the realization of an open world.During the Second World War, while being actively involved in the Allied atomic bomb project, Bohr was able to obtain access to Prime Minister Churchill and President Roosevelt to promote his view.After the war he continued his confidential approaches to the statesmen while publishing more generally oriented articles on the issue.

Although Bohr put in as much work in appeals to the statesmen as in his other writings, they were not intended for publication.This has called for the inclusion of a greater number than in earlier volumes of the Collected Works of previously unpublished documents as well as a particularly extensive historical introduction written by the editor.The material adds up to a fascinating sotry of the political dedication and social responsibility ofone of the major scientists of the twentieth century.

Part II documents Bohr's other social and political activities, such as his long-time presidency in the Royal Danish Academy of Sciences and Letters and his promotion of the peaceful uses of atomic energy.Taking a broader approach than most of his other publications, these occasional writings, which are most often published versions of talks at public events, are particularly well suited to present Bohr to the general public, as a thinker as well as a person.

* Niels Bohr
* Open World
* Atomic Bomb Project
* Science and Politics
* Collected Works
* Archival Documents
* Original Photographs ... Read more

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Niels Bohr, the founder of quantum mechanics, is generally considered to be one of the greatest scientists of the 20th century. His work revolutionized natural science, and his name is inscribed in history side by side with the names of Galileo, Newton, and Einstein. He won the Nobel Prize in physics for his model of the atom, which is still taught today in science classes everywhere. But the image of Bohr is complete only when the physicist is joined with the person Niels Bohr. This book, skillfully interweaving Bohr's scientific and personal life, is the first biography to be based on the extensive archives of the Bohr Institute of Physics in Copenhagen, and on excerpts from many of Bohr's letters to his family, his friends, and his colleagues. In addition, the book includes more than 150 photographs, as well as extracts from Bohr's personal correspondence to his wife, Margrethe, dating from the time of their engagement to just before his death 50 years later. This work of scientific biography is accessible to both the scientist and the general reader. Skillfully translated from the original Danish by Geoffrey French, the book has been carefully edited for an English-speaking readership. ... Read more

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This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words.This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ... Read more

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The Niels Bohr Collected Works are now complete with the publication of Volume 12, Popularization and People (1911-1962).

Niels Bohr is generally regarded as one of the most influential physicists of the twentieth century.The following are only some of the high points. In 1913, Bohr proposed a revolutionary model of the atom breaking with classical conceptions of physics. In 1921, he established the Institute for Theoretical Physics at the University of Copenhagen, which became the centre for the new physics visited by the younger generation of physicists from all over the world. From 1927, he oversaw the development leading to the "Copenhagen interpretation" of quantum mechanics which for Bohr formed the foundation for an epistemology valid beyond physics based on Bohr's complementarity concept. In 1939, he explained the mechanism of nuclear fission. Finally, from 1943 until the end of his life in 1962, he carried out a personal political mission to establish an open world between nations which he considered to be necessary in view of the existence of the atomic bomb.

All these contributions are amply documented in the earlier volumes of the Niels Bohr Collected Works.This last volume documents Niels Bohr as a person and his efforts to explain quantum physics and its implications to physicists and non-physicists alike. While his activity over many years in the area of superconductivity illustrates his striving for synthesis in physics, his encyclopaedia articles and radio speech for Scandinavian gymnasium students document his effort to make quantum physics and its implications understandable to the general public. The bulk of the volume comprises Bohr's many published writings about his predecessors (for example Isaac Newton), teachers and colleagues (for example Ernest Rutherford and Albert Einstein), family and friends. These writings, which include several rare pieces of autobiogaphy, bring new perspectives to Bohr's life and document his substantial social network, both internationally and within his beloved Denmark.

In addition to Bohr's publications reproduced in Parts I and II, the volume includes a more brief Part III with selected correspondence, as well as an inventory of relevant manuscripts. It concludes with a bibliography of Bohr's many publications, chronologically arranged with references to where they can be found in the various volumes of the Collected Works. The volume is illustrated with many new photographs.

* Niels Bohr
* Collected Works
* Archival Documents
* Original Photographs ... Read more

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Bohr's first acquaintance with the subject of penetration of charged particles through matter was as early as in 1912 when he treated the absorption of &agr; and &bgr; rays on the basis of Rutherford's atomic model.From then on he kept a lifelong interest in the subject, often using it as an important test of the methods of atomic mechanics. His last paper on penetration, written together with Jens Lindhard, dealt with electron capture and loss and was published in 1954.

Part I of this volume follows Bohr's work on penetration theory based on classical mechanics.Part II deals with the general theory of penetration, taking quantum-mechanical considerations into account.

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Customer Reviews (1)

A Whole New World Of Gorm
This book has really opened my eyes to Gorm. The concepts dicussed (the movement of particles through Gorm) are extremely interesting (dare I say arousing..?) and it generally turned me on. GO Jens, GO Gorm, GO GO GOAnders Kohl! ... Read more

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The influence of Niels Bohr's work, of his approach to research, both practical and theoretical, is widely felt today. His contributions to our knowledge of the atomic constituents of matter and to our view of science, remain of fundamental importance.

The publication of his collected works will give historians of science and scientists easy access to a life-work entirely devoted to the rational analysis of the laws of nature and of the singular character of their meaning for us.

In addition to Bohr's published papers, the series includes unpublished manuscripts and a wide selection of letters and other documents, with explanatory notes.

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Since the Niels Bohr centenary of 1985 there has been anastonishing international surge of scholarly analyses of Bohr'sphilosophy. Now for the first time in Niels Bohr and ContemporaryPhilosophy Jan Faye and Henry Folse have brought together sixteenof today's leading authors who have helped mould this new round ofdiscussions on Bohr's philosophy. In fifteen entirely new, previouslyunpublished essays we discover a surprising variety of the differentfacets of Bohr as the natural philosopher whose `framework ofcomplementarity' shaped the final phase of the quantum revolution andinfluenced two generations of the century's leading physicists. Thereis much on which the authors included here agree; but there are alsopolar disagreements, which assure us that the philosophical questionsrevolving around Bohr's `new viewpoint' will continue to be a subjectof scholarly interest and discussion for years to come.
This collection will interest all serious students of history andphilosophy of science, and foundations of physics.
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Hardbound. ... Read more