Dieses Buch ist bis heute eine der populärsten Darstellungen der Relativitätstheorie geblieben. In der vorliegenden Version haben J. Ehlers und M. Pössel vom Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) in Golm/Potsdam den Bornschen Text kommentiert und einen den anschaulichen, aber präzisen Stil Borns wahrendes, umfangreiches Ergänzungskapitel hinzugefügt, das die stürmische Entwicklung der Relativiatätstheorie bis hin zu unseren Tagen nachzeichnet. Eingegangen wird auf Gravitationswellen und Schwarze Löcher, auf neuere Entwicklungen der Kosmologie, auf Ansätze zu einer Theorie der Quantengravitation und auf die zahlreichen raffinierten (...) Experimente, welche die Gültigkeit der Einsteinschen Theorie mit immer größerer Genauigkeit bestätigt haben. Damit bleibt dieses Buch nach wie vor einer der unmittelbarsten Zugänge zur Relativitätstheorie für alle die sich für eine über das rein populärwissenschaftliche hinausgehende Einführung interessieren. (shrink)

Durch eine Untersuchung der Stoßvorgänge wird die Auffassung entwickelt, daß die Quantenmechanik in der Schrödingerschen Form nicht nur die stationären Zustände, sondern auch die Quantensprünge zu beschreiben gestattet.

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 was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. 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. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

This excellent, semi-technical account includes a review of classical physics (origin of space and time measurements, Ptolemaic and Copernican astronomy, laws of motion, inertia, and more) and coverage of Einstein’s special and general theories of relativity, discussing the concept of simultaneity, kinematics, Einstein’s mechanics and dynamics, and more.

The notion of reality in the physical world has become, during the last century, somewhat problematic. The contrast between the simple and obvious reality of the innumerable instruments, machines, engines, and gadgets produced by our technological industry, which is applied physics, and of the vague and abstract reality of the fundamental concepts of physical science, as forces and fields, particles and quanta, is doubtlessly bewildering. There has already developed a gap between pure and applied science and between the groups of (...) men devoted to the one or the other activity, a separation that may lead to a dangerous estrangement. Physics needs a unifying philosophy, expressible in ordinary language, to bridge this gulf between "reality" as thought of in practice and in theory. I am not a philosopher but a theoretical physicist. I cannot provide a well balanced philosophy of science that would take due account of the ideas developed by differing schools, but I shall endeavor to formulate some ideas which have helped me in my own struggle with these problems. (shrink)

For this eighth edition he also wrote a new chapter on the quantum theory of solids.

In this collection of informal reminiscences, first published in 1975, Max Born has written an extraordinarily vivid account of his life and work, originally intended for his family. Ranging from his time at the University of Göttingen, where Born had his first real motivation for a professional career in science, to the period in Berlin as professor extraordinary, when he and his wife became close friends of Einstein, these anecdotes and memories chart the "heroic age of physics" from (...) the perspective of one of its leading characters. In 1954 Born was awarded the Nobel Prize in physics for his fundamental contributions to the great discovery of that cadre of superlative scientific minds – quantum theory. But his scientific research provides only one strand of this story. Born's varied interests outside science led to many interesting experiences – some of historical importance insofar as they offer a glimpse into German society before and between the wars. (shrink)

In 1925-26, the late Max Born gave two sets of lectures at M.I.T., one on the structure of the atom, the other on the lattice theory of rigid bodies. Problems of Atomic Dynamics contains the text of both sets.What gives this volume its remarkable interest is just those dates: 1925-26. This must have been, by all accounts, the headiest period in twentieth-century physics, and Max Born was one of the leaders of the ferment. As Norbert Wiener remembers, "When (...) Professor Born came to the United States [for these lectures in 1925] he was enormously excited about the new basis Heisenberg had just given for the quantum theory of the atom."These lectures represent perhaps the most vivid written record of the transition between the "old" quantum theory of Bohr, and the "new" theory. "At the time I began this course of lectures," Born writes, "Heisenberg's first paper on the new quantum theory had just appeared. Here his masterly treatment gave the quantum theory an entirely new turn. The paper of Jordan and myself, in which we recognized the matrix calculus as the proper formulation of Heisenberg's ideas, was in press, and the manuscript of a third paper by the three of us was almost completed."Even as the lecture series progressed, Born became familiar with new results, which he introduced into his presentation: Pauli's fourth quantum number, Dirac's formalism, his own work on a general operational calculus. And yet, in spite of the conditions of revolutionary changes in physics that year -- in which established ancien regime principles were collapsing almost monthly -- the theory is developed with a cool elegance and with a formal completeness which may be regarded as a "limiting case" of its current state. These lectures represent the foundations of quantum theory, and they have withstood the tests of time -- the tests of more than forty years of experimental evidence. (shrink)

In this fascinating autobiography from the foremost genius of twentieth-century physics, Max Planck tells the story of his life, his aims, and his thinking. Published posthumously, the papers in this volume were written for the general reader and make accessible his scientific theories as well as his philosophical ideals, including his thoughts on ethics and morals. Max (Karl Ernst Ludwig) Planck was a German physicist and philosopher known for his quantum theory, for which he won the Nobel Prize in Physics (...) in 1918. Planck was born in Kiel, Germany, in 1858 to an academic family, and he valued education from a young age. He attended the Universities of Munich and Berlin to study physics under the great scientific leaders Kirchhoff and Helmholtz. His early work mainly focused on the study of thermodynamics, and in 1900 he published a paper on his quantum theory that would change the face of modern physics. Planck worked as a professor at Berlin University his entire life, and he also served as the president of the Kaiser Wilhelm Society for the Promotion of Science. During World War II, Planck experienced great hardships while he remained in Germany but openly opposed the Nazi regime. One of his two sons was executed during this time for an unsuccessful attempt on Hitler's life, and Planck's home in Berlin was eventually bombed. He continued to write on physics and philosophy until his death in 1947. (shrink)

* Hatha yoga is commonly thought to be a pure, ancient Indian spiritual discipline that transcends cultural, temporal and spatial boundaries or a spiritual discipline corrupted by Indians (for export) or Westerners (for import) to accommodate Westerners. Calling these beliefs into question, Max Popov's Radiant Bodies shows how hatha yoga was transformed from sacred practice into a health and fitness regime for middle-class Indians in India in the early and mid-20th century. Popov tells the story of this transformation through the (...) lives and accomplishments of eleven key figures: six Indian yogis (Shri Yogendra, Swami Kuvalayananda, S. Sundaram, T. Krishnamacharya, Swami Sivananda and B. K. S. Iyengar), an Indian bodybuilder (K. V. Iyer), a rajah (Bhavanarao Shrinivasrao), an Indian diplomat (Apa Pant), an American-born English journalist (Louise Morgan), and a Russian-born yogi trained in India (Indra Devi).Their accomplishments are placed within the context of such Western trends as the physical culture movement, the commodification of exercise, militant nationalism, post-World War I anxiety, the mystique of science, jazz age popular entertainment, and the quest for youth and beauty. Through a series of biographical narratives placed in a rich cultural context, Popov not only brings to life the formation of modern hatha yoga as an exercise system in the early 20th century but also its transformation over the course of the 20th century into an embodied spiritual practice. Popov draws on extensive research from rare primary sources to present a cutting edge interpretation of the history of modern hatha yoga. Radiant Bodies is a thoughtful book for the educated general reader that would also be of special interest for religion scholars and yoga professionals and practitioners. (shrink)

The late John Austin's William James Lectures 1 might well have borne the subtitle ‘In Pursuit of a Vanishing Distinction’. Although the chase is remorseless, glimpses of the quarry become increasingly equivocal and the hunter is left empty-handed at last. It is hard to know what has gone awry. Has the wrong game been pursued—and in the wrong direction?

What does it mean to learn something? -- Are teachers born or made? -- How is an environment for learning created? -- What is motivation? -- What does it mean to be intelligent -- What does every teacher need to know about lesson planning? -- How do I determine grades? -- Is there anything else I need to know?

It is a book all LIS educators and administrators need to read now. The editors and author contributors show us by direct action what critical librarianship is. At the heart of the book is an ethics of care and self-care, an ethics born out of critical stances positioned in examining our rich intersectionalities and inter-being as people of color and allies. Librarians With Spines is a call to action that asks us to reflect on our intentionality as information professionals. (...) It challenges librarians to proudly uphold and carry forward our duty to serve our communities in our daily work. (shrink)

What does syndicalism want? was first published in 1909, when the syndicalist revolt was growing worldwide. Baginski is clear in his call for working class rebellion: the task is not to fight simply for better conditions but ‘to break the chains of wage labor and at the same time the shackles of servitude to the state.’ At the same time, Baginski is no joyless martyr to ‘the cause’: personal freedom joins collective struggle at the core of his anarchism. Max Baginski (...) (1864-1943) was a German-born American anarchist activist and writer. Rudolf Rocker called him “one of the most outstanding human beings I have met in my life”. Nathan Jun’s introduction puts Baginski in his political and intellectual context as writer and anarchist. (shrink)

Bergson develops, along with his metaphysic, a positivist theory of science. That both are strongly interrelated in his works is a demonstration of their close relationship, which also is characteristic of the present philosophical situation. Bergson has in general accentuated those problems of methodology and matter that had been neglected by contemporary science. He has contributed in an important way to the development of psychology and biology, and his central theme, — the problem of time in its reality — is (...) a focal category of every theory of history. Bergson has paid special attention to the difference between time that is lived and that abstract time that dominates in the natural sciences. Frequently his discussions approximate a dialectic approach. H. stresses these tendencies in his discussion of the new book. The subordination of Bergson’s thought to his metaphysical ends, however, has interfered with those parts of his works that might have otherwise borne fruit. Instead of using his psychological analyses to penetrate more clearly into historical relationships, he uses them as supports for his vision of „creative development”. The contradiction that pervades Bergson’s entire philosophy manifests itself in the unhistorical character of this thought and the attempt to define the function of time in its theoretical implications. H. demonstrates that Bergson is led to negate time because he elevates the concept to a metaphysical principle. Bergson développe en même temps que sa métaphysique une théorie positiviste de la science. Dans la mesure où ces deux aspects de son oeuvre sont manifestement en relation étroite, ils s’appuient et se conditionnent. Ce n’est pas seulement par là que l’oeuvre de Bergson est caractéristique pour la situation actuelle du mouvement des idées. La philosophie de Bergson a rempli dans une mesure particulièrement grande la tâche qui consistait à faire progresser de manière indépendante des problèmes méthodologiques et matériels que le travail scientifique contemporain négligeait. Psychologie et biologie lui doivent d’importantes contributions et se sont engagées en partie sous son influence dans des voies nouvelles. Son thème fondamental : le temps réel est une catégorie centrale de toute théorie de l'histoire, bien plus encore de toute pensée théorique qui cherche à embrasser l’ensemble. Bergson a distingué le temps vécu du temps abstrait des sciences de la nature et il en a fait l’objet de ses recherches personnelles. Souvent ainsi il a été conduit jusqu’au seuil de la dialectique. A l’occasion de son nouveau livre, H. met en lumière quelques-uns des passages où pointe la dialectique. La subordination de la pensée bergsonienne à une intention métaphysique ultime a cependant porté grand préjudice aux parties fécondes de son oeuvre. Au lieu de mettre ses analyses psychologiques au service d’une connaissance de l’ensemble historique différenciée et toujours consciente de ses propres hypothèses, ces analyses psychologiques chez Bergson lui-même ne sont destinées qu’à introduire et assurer son mythe de „L’Évolution créatrice“. La contradiction qui traverse toute la philosophie de Bergson réside dans l’opposition de sa pensée princi-piellement non historique et de l’effort pour saisir le rôle du temps. H. montre que Bergson doit nier le temps lorsqu’il l’érige en principe métaphysique. (shrink)

German-born Sanskritist and philologist Max Müller was a pioneer in the field of comparative mythology and religion. Settling in England in 1846, during his distinguished career he served as Taylorian professor of modern European languages, curator of the Bodleian Library and Oxford's first professor of comparative philology. The content of this book was originally presented as part of a lecture series delivered at the University of Glasgow in 1893, where Müller was serving as the Gifford Lecturer. Müller's aim in (...) presenting these lectures was to show that the only way of properly understanding religious phenomena was through utilising historical method. The three volumes preceding this one focused on 'physical religion', 'natural religion' and 'anthropological religion'; this fourth book, on theosophy, contains fifteen lectures, the subject matter ranging from Alexandrian Christianity and the eschatology of Plato to the journey of the soul after death. (shrink)

A little more than half a year before Matrix Mechanics was born, Max Born finished his book "Vorlesungen ueber Atommechanik, Erster Band", which is a state-of-the-art presentation of Bohr-Sommerfeld quantisation. This book, which today seems almost forgotten, is remarkable for its epistemological as well as technical aspects. Here I wish to highlight one aspect in each of these two categories, the first being concerned with the role of axiomatisation in the heuristics of physics, the second with the problem (...) of quantisation proper before Heisenberg and Schroedinger. This paper is a contribution to the project "History and Foundations of Quantum Physics" of the Max Planck Institute for the History of Sciences in Berlin and will appear in the book "Research and Pedagogy. The History of Quantum Physics through its Textbooks", edited by M.Badino and J.Navarro. (shrink)

Mrs. G. Henry, former Miss Hermann, has been a student in my department at Goettingen University. She has got a Ph. D. degree in 1925, talking Mathematics as chief subject, and Physics and Philosophy in addition. In the same year she passed the state examinations for teachers license in the same subjects.