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Freeman Dyson's life experiences made him a wise, kindly grandfather figure to two generations of students enrolled in an undergraduate university course 'Science, Technology, & Society.' Near the end of each semester, the class sent him written questions, on reading Professor Dyson's memoir Disturbing the Universe. The letter exchanges occurred regularly from April 1993 through December 2019.'Yours Ever, Freeman' is devoted to this correspondence between Professor Dyson and the students. His responses went beyond answering questions, as he enlarged the scope of the questions by sharing stories from his experiences. While others have written of Professor Dyson's accomplishments and awards; the class came to know him through his discussions about life, science, and society. Topics ranged from the existential to headlines of the day, from national policies to personal values. Over three thousand students have been blessed to count Freeman Dyson as a mentor and consider him as a friend.'Yours Ever, Freeman' supplements Dear Professor Dyson published earlier. While the 2016 book included in-depth reviews of the STS course contents from which the correspondence emerged, besides including the 2016-2019 correspondence, the present book maintains a tight focus on the correspondence itself, annotated as necessary for context. The book's title comes from the way Professor Dyson signed his letters.
Freeman Dyson's life experiences made him a wise, kindly grandfather figure to two generations of students enrolled in an undergraduate university course 'Science, Technology, & Society.' Near the end of each semester, the class sent him written questions, on reading Professor Dyson's memoir Disturbing the Universe. The letter exchanges occurred regularly from April 1993 through December 2019.'Yours Ever, Freeman' is devoted to this correspondence between Professor Dyson and the students. His responses went beyond answering questions, as he enlarged the scope of the questions by sharing stories from his experiences. While others have written of Professor Dyson's accomplishments and awards; the class came to know him through his discussions about life, science, and society. Topics ranged from the existential to headlines of the day, from national policies to personal values. Over three thousand students have been blessed to count Freeman Dyson as a mentor and consider him as a friend.'Yours Ever, Freeman' supplements Dear Professor Dyson published earlier. While the 2016 book included in-depth reviews of the STS course contents from which the correspondence emerged, besides including the 2016-2019 correspondence, the present book maintains a tight focus on the correspondence itself, annotated as necessary for context. The book's title comes from the way Professor Dyson signed his letters.
Einfuhrung.- Qualitat und Quantitat in der antiken Philosophie: Zur Genese einer Fragestellung.- Quantity and Quality in Scholastic Aristotelian Natural Philosophy: John Dumbleton's Summa Logicae et Philosophiae Naturalis.- Der Arzt Paracelsus zwischen Physica und Virtus.- (Bearbeitung: Hans Bieri; Nachwort: Gunter Scharf) Qualitat und Quantitat in Keplers Weltharmonik.- Farbenlehre bei Newton und Goethe.- Laboratoriumspraxis, Quantitaten und die Produktion von Erkenntnis: Transformationen der Chemie zwischen Lavoisier und Liebig.- Die Einheit von Mikro- und Makrokosmos: Quantitat und Qualitat in der Physik.- Qualitas und Quantitas und die beiden Hirnhalften.- Rechnen und Unterscheiden: Qualitat und Quantitat zwischen Philosophie und Wissenschaft.- Gibt es eine Wiedergeburt der Qualitat in der Mathematik?.- Literaturauswahl zur Einfuhrung.- UEber die Autoren.
Freeman Dyson has designed nuclear reactors and bomb-powered spacecraft; he has studied the origins of life and the possibilities for the long-term future; he showed quantum mechanics to be consistent with electrodynamics and started cosmological eschatology; he has won international recognition for his work in science and for his work in reconciling science to religion; he has advised generals and congressional committees. An STS (Science, Technology, Society) curriculum or discussion group that engages topics such as nuclear policies, genetic technologies, environmental sustainability, the role of religion in a scientific society, and a hard look towards the future, would count itself privileged to include Professor Dyson as a class participant and mentor. In this book, STS topics are not discussed as objectified abstractions, but through personal stories.The reader is invited to observe Dyson's influence on a generation of young people as they wrestle with issues of science, technology, society, life in general and our place in the universe. The book is filled with personal anecdotes, student questions and responses, honest doubts and passions.
Understanding tensors is essential for any physics student dealing with phenomena where causes and effects have different directions. A horizontal electric field producing vertical polarization in dielectrics; an unbalanced car wheel wobbling in the vertical plane while spinning about a horizontal axis; an electrostatic field on Earth observed to be a magnetic field by orbiting astronauts-these are some situations where physicists employ tensors. But the true beauty of tensors lies in this fact: When coordinates are transformed from one system to another, tensors change according to the same rules as the coordinates. Tensors, therefore, allow for the convenience of coordinates while also transcending them. This makes tensors the gold standard for expressing physical relationships in physics and geometry. Undergraduate physics majors are typically introduced to tensors in special-case applications. For example, in a classical mechanics course, they meet the "inertia tensor," and in electricity and magnetism, they encounter the "polarization tensor." However, this piecemeal approach can set students up for misconceptions when they have to learn about tensors in more advanced physics and mathematics studies (e.g., while enrolled in a graduate-level general relativity course or when studying non-Euclidean geometries in a higher mathematics class). Dwight E. Neuenschwander's Tensor Calculus for Physics is a bottom-up approach that emphasizes motivations before providing definitions. Using a clear, step-by-step approach, the book strives to embed the logic of tensors in contexts that demonstrate why that logic is worth pursuing. It is an ideal companion for courses such as mathematical methods of physics, classical mechanics, electricity and magnetism, and relativity.
Die Tatsache, dass die Wissenschaft in immer zahlreichere Lebensbereiche eingreift, hat sie in den letzten Jahren vermehrt ins Rampenlicht des Affentlichen Bewusstseins treten lassen und dazu gefA1/4hrt, dass politische, wirtschaftliche und gesellschaftliche KrAfte ihre Autonomie in Frage stellen. Diese aktuelle Diskussion zu bereichern, ist das Anliegen dieses Bandes. Vertreter verschiedener Fachrichtungen untersuchen darin anhand konkreter Fallstudien, wie sich das VerhAltnis zwischen Wissenschaft und Gesellschaft vom Mittelalter bis in die Gegenwart entwickelte. Sie zeigen, dass Wissenschaft zu keiner Zeit in einem gesellschaftlichen Vakuum betrieben wurde - und geben damit wertvolle DenkanstAsse fA1/4r die zukA1/4nftige Gestaltung dieser konflikttrAchtigen Beziehung. Aus dem Inhalt: - Wissenschaft an den UniversitAten des Mittelalters - Der Philosoph im 17. Jahrhundert. Selbstbild und gesellschaftliche Stellung - Wissenschaft und SozietAtsbewegung im 18. Jahrhundert - The Industrial Revolution and the Growth of Science - Fortschritt durch Wissenschaft. Die UniversitAten im 19. Jahrhundert - Physik und Physiker im Dritten Reich - Biologie und politische Macht - Wissenschaft im heutigen Europa: Aussichten und Probleme.
"In the judgment of the most competent living mathematicians, Fraulein Noether was the most significant creative mathematical genius thus far produced since the higher education of women began."-Albert Einstein The year was 1915, and the young mathematician Emmy Noether had just settled into Gottingen University when Albert Einstein visited to lecture on his nearly finished general theory of relativity. Two leading mathematicians of the day, David Hilbert and Felix Klein, dug into the new theory with gusto, but had difficulty reconciling it with what was known about the conservation of energy. Knowing of her expertise in invariance theory, they requested Noether's help. To solve the problem, she developed a novel theorem, applicable across all of physics, which relates conservation laws to continuous symmetries-one of the most important pieces of mathematical reasoning ever developed. Noether's "first" and "second" theorem was published in 1918. The first theorem relates symmetries under global spacetime transformations to the conservation of energy and momentum, and symmetry under global gauge transformations to charge conservation. In continuum mechanics and field theories, these conservation laws are expressed as equations of continuity. The second theorem, an extension of the first, allows transformations with local gauge invariance, and the equations of continuity acquire the covariant derivative characteristic of coupled matter-field systems. General relativity, it turns out, exhibits local gauge invariance. Noether's theorem also laid the foundation for later generations to apply local gauge invariance to theories of elementary particle interactions. In Dwight E. Neuenschwander's new edition of Emmy Noether's Wonderful Theorem, readers will encounter an updated explanation of Noether's "first" theorem. The discussion of local gauge invariance has been expanded into a detailed presentation of the motivation, proof, and applications of the "second" theorem, including Noether's resolution of concerns about general relativity. Other refinements in the new edition include an enlarged biography of Emmy Noether's life and work, parallels drawn between the present approach and Noether's original 1918 paper, and a summary of the logic behind Noether's theorem.
Die Tatsache, dass die Wissenschaft in immer zahlreichere Lebensbereiche eingreift, hat sie in den letzten Jahren vermehrt ins Rampenlicht des oeffentlichen Bewusstseins treten lassen und dazu gefuhrt, dass politische, wirtschaftliche und gesellschaftliche Krafte ihre Autonomie in Frage stellen. Diese aktuelle Diskussion zu bereichern, ist das Anliegen dieses Bandes. Vertreter verschiedener Fachrichtungen untersuchen darin anhand konkreter Fallstudien, wie sich das Verhaltnis zwischen Wissenschaft und Gesellschaft vom Mittelalter bis in die Gegenwart entwickelte. Sie zeigen, dass Wissenschaft zu keiner Zeit in einem gesellschaftlichen Vakuum betrieben wurde - und geben damit wertvolle Denkanstoesse fur die zukunftige Gestaltung dieser konflikttrachtigen Beziehung. Aus dem Inhalt: - Wissenschaft an den Universitaten des Mittelalters - Der Philosoph im 17. Jahrhundert. Selbstbild und gesellschaftliche Stellung - Wissenschaft und Sozietatsbewegung im 18. Jahrhundert - The Industrial Revolution and the Growth of Science - Fortschritt durch Wissenschaft. Die Universitaten im 19. Jahrhundert - Physik und Physiker im Dritten Reich - Biologie und politische Macht - Wissenschaft im heutigen Europa: Aussichten und Probleme.
Freeman Dyson has designed nuclear reactors and bomb-powered spacecraft; he has studied the origins of life and the possibilities for the long-term future; he showed quantum mechanics to be consistent with electrodynamics and started cosmological eschatology; he has won international recognition for his work in science and for his work in reconciling science to religion; he has advised generals and congressional committees. An STS (Science, Technology, Society) curriculum or discussion group that engages topics such as nuclear policies, genetic technologies, environmental sustainability, the role of religion in a scientific society, and a hard look towards the future, would count itself privileged to include Professor Dyson as a class participant and mentor. In this book, STS topics are not discussed as objectified abstractions, but through personal stories.The reader is invited to observe Dyson's influence on a generation of young people as they wrestle with issues of science, technology, society, life in general and our place in the universe. The book is filled with personal anecdotes, student questions and responses, honest doubts and passions.
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