京都大学 / 0048 / 新制・課程博士 / 博士(文学) / 甲第18713号 / 文博第671号 / 新制||文||613(附属図書館) / 31664 / 京都大学大学院文学研究科現代文化学専攻 / (主査)教授 伊藤 和行, 教授 林 晋, 准教授 伊勢田 哲治 / 学位規則第4条第1項該当 / Doctor of Letters / Kyoto University / DGAM

The first four decades of the twentieth century was a period of rapid development in physics. The late nineteenth century discoveries of X-rays, Becquerel rays and subatomic particles had revealed new properties of matter, and the early twentieth century quantum and relativity theories added to the notion that the discipline was undergoing a fundamental change in thought and practice. Historians and scientists alike have retrospectively conceived of a sharp divide between nineteenth century and twentieth century physics, applying the terms ‘classical’ and ‘modern’ to distinguish between these two practices. However, recent scholarship has suggested that early twentieth century physicists did not see this divide as self-evident, and in fact were responsible for consciously constructing these categories and definitions. This thesis explores the creation of the terms ‘classical’ and ‘modern’ physics in Britain, and the physicists responsible. I consider how these terms were employed in ‘public’ arenas (lectures, books, newspapers, museums) influencing the wider reception of ‘modern’ physics. I consider not only the rhetorics employed by ‘modern’ physicists, but also those we would now consider to be ‘classical’, revealing a diverse range of potential definitions of ‘modern’ physics. Furthermore, even within the ‘modernists’ themselves, there was considerable disagreement over how their work was to be presented, as industrially applicable, or of value simply as intellectual knowledge in and of itself. There were also different notions of how scientific ‘progress’ should be portrayed, whether knowledge advanced through experimental refinement or theoretical work. Early twentieth century ‘modern’ physics appeared to discard long held theories, rejecting much of the discipline’s past. As such, physicists’ connection to the legacy of Newton was under threat. Furthermore, the instability of science more generally was revealed: if physicists had shown the old theories to be wrong, then why should the new ones be any different? This had severe implications as to how the public placed ‘trust’ in science. I explore how physicists carefully managed the ‘public’ transition from ‘classical’ to ‘modern’ physics, regaining public trust during a period of scientific ‘revolution’ and controversy.

Dans ce présent travail, nous étudions la signification de l’abstrait et du concret dans la physique de Leibniz à l’époque de Mayence (1668–1672 mars). La question la plus profonde pour Leibniz est de savoir dans quelle condition le concept d’action est appliqué au corps. Sa recherche de la physique consiste en deux points : la recherche de la signification spécifique de la substantialité du corps ; celle de l’extension de l’usage de l’action – ce sont les sujets essentiels dans sa théologie –. Ainsi comprise, sa réflexion déployée dans la théorie abstraite montrent que les concepts principaux dans sa théorie du mouvement — la grandeur, la figure et le mouvement— sont analysés selon l’usage propre dans chaque contexte où ils apparaissent. Grâce à cette recherche, Leibniz reçoit le concept du conatus par Hobbes. Ces réflexions préparent le côté abstrait de sa physique. Au cours de ce processus, Leibniz s’intéresse également à la sensibilité de l’être humain. Ce sujet est relié à la fois à la recherche de la nature fondamentale de l’esprit humain et à la phénoménalité du monde corporel. Par cela, Leibniz ouvre la voie pour la recherche du phénomène sensible dans la physique qui constitue le côté concret de sa physique. Avec l'ensemble de ses recherches, Leibniz fonde ses deux premiers traités dans la physique qui se répartissent en une théorie abstraite et une théorie concrète. Pour les intégrer dans la physique, Leibniz emploie le concept d’oeconomia. Ceci montre que le jeune Leibniz cherche à établir une physique qui s’enracine dans sa métaphysique, mais qui est autonome en tant que science. / In this present work, we study the meaning of the abstract and the concrete in Leibniz's physics at the time of Mainz (1668–1672 March). Through his hylomorphism, Leibniz seeks to consider how to apply the concept of action to the body. In this perspective, his search for physics consists of two points: 1/ the search for the specific meaning of the substantiality of the body; 2/ the search for the extension of the use of action – these are essential subjects in his theology –. Thus understood, his reflection in the abstract theory show that the main concepts in his theory of motion - size, figure and movement - sont analysed according to the specific use in each context in which they appear. Thanks to this research, Leibniz receives the concept of the conatus by Hobbes. These reflections prepare the abstract side of his physics. During this process, Leibniz is also interested in the sensitivity of the human being. This subject is related both to the search for the fundamental nature of the human mind and to the phenomenality of the corporeal world. From there, Leibniz opened the way for the search for the sensitive phenomenon in physics, which constitutes the concrete side of his physics. With all this research, Leibniz founded his first two treatises in physics, which are divided into abstract theory and concrete theory. To integrate abstract and concrete into physics, Leibniz uses the concept of oeconomia. This shows that young Leibniz is seeking to establish physics, which is rooted in his metaphysics, but which is autonomous as a science.

Atualmente o potencial vetor é geralmente tratado no eletromagnetismo clássico como um artifício para o cálculo dos campos elétricos e magnéticos sem um significado claro. No entanto, quando foi proposto na metade do século XIX, ele possuía um significado físico claro e desempenhava um papel central para Faraday, Maxwell e outros físicos britânicos. Um dos objetivos deste trabalho é entender como se deu esta mudança na interpretação do conceito de potencial vetor. Para isto foi realizado um estudo histórico analisando as diferentes interpretações para este conceito partindo dos trabalhos de Faraday sobre indução eletromagnética, onde propôs o conceito de estado eletrotônico. Analisamos as contribuições de William Thomson que fortemente inspiraram Maxwell a sugerir diferentes interpretações para o conceito em trabalhos publicados ao longo de cerca de duas décadas até a publicação do Treatise on Electricity and Magnestism em 1873. No final do século XIX a interpretação dada por Maxwell ao conceito de potencial vetor começou a ser questionada por vários físicos. Uma das questões envolvidas neste processo foi a realidade das grandezas físicas. Nomes como Heaviside, Hertz e outros defendiam que as grandezas dotadas de realidade física na teoria eletromagnética eram os campos elétrico e magnético e não o potencial vetor. Com essa nova visão desenvolveram uma nova teoria eletromagnética próxima da que conhecemos atualmente. No entanto, este processo não foi linear e aceito acriticamente. Ao longo do século XX foram publicados trabalhos propondo uma interpretação física para o potencial vetor, ainda no contexto clássico. O estudo histórico aqui desenvolvido priorizou a abordagem desenvolvida na Grã-Bretanha / Currently the vector potential generally is considered in the classical electromagnetic theory as an artifice for the calculation of the electric and magnetic fields and without a clear physical meaning. However, when it was proposed in the mid-nineteenth century, it used to have a clear physical meaning and played a central role for Faraday, Maxwell and other British physicists. One of the goals of this dissertation is to understand how the meanings attributed to the vector potential changed along years. In order to answer to this question, we developed a historical study analyzing the different interpretations for this concept starting with the works of Faraday on electromagnetic induction, where he introduced the concept of electrotonic state. We analyzed the contributions of William Thomson that inspired strongly Maxwell to suggest different interpretations for the concept in works published along the next two decades until the publication of the Treatise on Electricity and Magnestism in 1873. In the end of the nineteenth century Maxwells interpretations for the vector potential began to be questioned by several physicists. One of the issues involved in this questioning was the reality of the physical quantities. People as Heaviside, Hertz and others defended that electric and magnetic fields, not the vector potential, were quantities endowed with physical reality. With this new approach they developed a new electromagnetic theory closer to the currently accepted. Nevertheless, this process was not linear and uncritically accepted. Throughout the twentieth century papers and books were published defending a physical interpretation for the vector potential considering a classical context for the electromagnetic theory. The historical study developed here focused the developments in Great-Britain although some mentions to Continental physics are made

The aim of this thesis is to resurrect interest in the concept of power in political theory by shedding light on some of its relatively unexplored discursive dimensions and developing a fresh approach to its understanding. Particularly, it studies an under-examined theme in the current literature, which, however, forms a crucial aspect determining different definitions of power: in what manner do different ways of thinking about power underpin variable conceptual formulations and theoretical interpretations of this key political concept? What types of cognitive, ideational and conceptual 'micro-processes' shape different ways of thinking about power in political thought? The thesis suggests novel interpretative possibilities that may be distilled from developing a hermeneutical approach extending across the dimensions of historical time and disciplinary space, by combining methodological insights from the fields of morphology, intellectual history and interdisciplinary study. To that end, it engages perspectives gleaned from historical treatments of power, as well as recent understandings of spatiality and force provided by scientific discourse. The concept of power is explored through the perspectives of (i) cultural historicity and (ii) interdisciplinarity. Along the axis of cultural historicity, the analysis studies Aristotle's classical concept of 'dunamis' as the original conceptual modality of power in political thought. Along the axis of interdisciplinarity, the examination explores the concept of force in the discourse of physics, and its parallel development in political thought. This dissertation shows that the exploration of those conceptual modalities can yield a new appreciation of certain diachronic and contingent conceptual features of power and enhance our understanding of the multifaceted discursive processes through which those form, including the underpinning 'micro-semantic', linguistic and ideational processes which contribute to the emergence of variable modes of thinking about power. In so doing, the thesis aims at illuminating our modern understanding of the concept, moving the scholarly discourse forward towards new horizons of meaning and interpretation.

This thesis deals with the use of modern digital technologies in a constructivist approach to physics teaching in elementary school. The thesis describes development of physics teaching strategies from the earliest period to present. Great attention is paid to an analysis and comparison of particular software products including examples. The practical part of the thesis concentrates on simulation of physical phenomena and includes several educational games. A group of the created programs and their outputs were used directly in physics teaching at the elementary school and the lower level of grammar schools. Efficiency of the programs was proved by pedagogical test.

Atualmente o potencial vetor é geralmente tratado no eletromagnetismo clássico como um artifício para o cálculo dos campos elétricos e magnéticos sem um significado claro. No entanto, quando foi proposto na metade do século XIX, ele possuía um significado físico claro e desempenhava um papel central para Faraday, Maxwell e outros físicos britânicos. Um dos objetivos deste trabalho é entender como se deu esta mudança na interpretação do conceito de potencial vetor. Para isto foi realizado um estudo histórico analisando as diferentes interpretações para este conceito partindo dos trabalhos de Faraday sobre indução eletromagnética, onde propôs o conceito de estado eletrotônico. Analisamos as contribuições de William Thomson que fortemente inspiraram Maxwell a sugerir diferentes interpretações para o conceito em trabalhos publicados ao longo de cerca de duas décadas até a publicação do Treatise on Electricity and Magnestism em 1873. No final do século XIX a interpretação dada por Maxwell ao conceito de potencial vetor começou a ser questionada por vários físicos. Uma das questões envolvidas neste processo foi a realidade das grandezas físicas. Nomes como Heaviside, Hertz e outros defendiam que as grandezas dotadas de realidade física na teoria eletromagnética eram os campos elétrico e magnético e não o potencial vetor. Com essa nova visão desenvolveram uma nova teoria eletromagnética próxima da que conhecemos atualmente. No entanto, este processo não foi linear e aceito acriticamente. Ao longo do século XX foram publicados trabalhos propondo uma interpretação física para o potencial vetor, ainda no contexto clássico. O estudo histórico aqui desenvolvido priorizou a abordagem desenvolvida na Grã-Bretanha / Currently the vector potential generally is considered in the classical electromagnetic theory as an artifice for the calculation of the electric and magnetic fields and without a clear physical meaning. However, when it was proposed in the mid-nineteenth century, it used to have a clear physical meaning and played a central role for Faraday, Maxwell and other British physicists. One of the goals of this dissertation is to understand how the meanings attributed to the vector potential changed along years. In order to answer to this question, we developed a historical study analyzing the different interpretations for this concept starting with the works of Faraday on electromagnetic induction, where he introduced the concept of electrotonic state. We analyzed the contributions of William Thomson that inspired strongly Maxwell to suggest different interpretations for the concept in works published along the next two decades until the publication of the Treatise on Electricity and Magnestism in 1873. In the end of the nineteenth century Maxwells interpretations for the vector potential began to be questioned by several physicists. One of the issues involved in this questioning was the reality of the physical quantities. People as Heaviside, Hertz and others defended that electric and magnetic fields, not the vector potential, were quantities endowed with physical reality. With this new approach they developed a new electromagnetic theory closer to the currently accepted. Nevertheless, this process was not linear and uncritically accepted. Throughout the twentieth century papers and books were published defending a physical interpretation for the vector potential considering a classical context for the electromagnetic theory. The historical study developed here focused the developments in Great-Britain although some mentions to Continental physics are made

Unique français parmi les fondateurs de la mécanique quantique, Louis de Broglie est une figuremajeure de l’histoire de la physique française du XXème siècle. Il devient grâce à son prix Nobel dephysique en 1929 le personnage central de la physique théorique française. Dans les récits usuelsportant sur la physique française du XXème siècle, la mécanique quantique est décrite comme s’étanttrès lentement diffusée en France, et il est souvent admis que peu de physiciens de ce pays l’utilisèrentavant la fin de la seconde guerre. De Broglie est souvent désigné comme le grand responsable de cetétat de fait et est dépeint comme un représentant type d’une pratique de physique théorique obsolète.De plus, son rôle institutionnel et sa responsabilité dans l’isolationnisme français sont dénoncés.Le but de ce travail est, premièrement, d’éclairer les modalités de la diffusion de la mécaniquequantique en France et le rôle de Louis de Broglie dans ce processus. Ce faisant, mon propos apporterade fortes nuances aux habituels récits portant sur cet aspect de l’histoire de la physique française duXXème siècle. Deuxièmement, je montrerai que l’essor de domaines tels que la physique des particules,la physique du solide et la physique nucléaire après la seconde guerre mondiale introduit unchangement dans les pratiques des jeunes théoriciens par rapport aux pratiques qui régnaient autour deLouis de Broglie. Je serai alors en mesure d’expliquer pourquoi l’héritage de Louis de Broglie au seinde la physique française de la seconde moitié du XXème siècle est si peu revendiqué, tout en évitant detomber dans le piège des jugements rétrospectifs et péjoratifs. / As the only Frenchman among the founding fathers of quantum mechanics, Louis de Broglie has agreat importance in the XXth French physics. With the prestige from the Nobel Prize in 1929, deBroglie became the main characters of the French theoretical physics community since the 30’s andgreat responsibilities on its evolution were entrusted to him. In the usually story of the XXth Frenchphysics, quantum mechanics, which is the core of theoretical physics since 1925, is said to have spreadslowly in France and French theorists who really used it were few before WWII. This story goes on,saying that de Broglie was the principal guilty of this state of fact. In this story, the discoverer ofwave-particle duality of matters becomes a representative of old-fashioned theorists who practice anaive kind of picture-based physics. Furthermore, his institutional action and his responsibility in theisolation of French physics are stigmatized.The aim of this work is, firstly, to throw light on the modality of the diffusion of quantummechanics in France and the role of de Broglie in this process, both on the intellectual and theinstitutional side. Secondly, it will be shown that progress in the area of particle physics, solid statephysics and nuclear physics after WWII introduce a shift in the practice of many young theoristsrelative to the way of practice theoretical physical inside de Broglie’s group. We will thus be able tounderstand why the legacy of Louis de Broglie is not claimed in contemporary French theoreticalphysics without falling into the trap of a retrospective and pejorative assessment of the career of themost famous French theorist of the XXth century.

Este trabalho descreve o uso de elementos históricos como agente facilitador do aprendizado da Mecânica dos Fluidos no Nível Médio. Foi produzido um material instrucional alicerçado nas idéias da teoria da aprendizagem significativa de Ausubel e Novak. Além de tópicos históricos, o texto apresenta associações com o cotidiano do aluno. Complementaram a aplicação da proposta a realização de atividades experimentais e o uso de vídeos que representam os fenômenos físicos discutidos em aula. Através da observação diária em sala de aula e da análise de questionários respondidos pelos alunos ao final de sua aplicação, pudemos verificar que a proposta alcançou seus objetivos, uma vez que os estudantes ficaram mais predispostos ao aprendizado, além de terem assumido um comportamento mais participativo e entusiasmado em aula. Também foi elaborado um roteiro de sugestões visando a orientar professores que se interessem em desenvolver futuramente a proposta. / We describe the use of historical elements to facilitate the learning of Fluid Mechanics in High School. We have developed an instructional material founded on the basis of the theory of meaningful learning of Ausubel and Novak. Besides the historical topics, the text explores the quotidian of the student. As a complement, experimental activities and the use of videos, representing the physical phenomena presented in class, complemented the application of the proposal. Daily observation in classroom and analysis of the questionnaires answered by the students showed us that we succeeded in stimulating the students, who demonstrated much more enthusiasm and participation. It was developed, also, a guide with suggestions to teachers interested in utilizing the material.

Orientadora: Profa. Dra. Graciela de Souza Oliver / Dissertação (mestrado) - Universidade Federal do ABC, Programa De Pós-Graduação em Ensino, História, Filosofia das Ciências e Matemática, 2015. / Em um ambiente marcado pelo paradigma newtoniano, Fourier estabeleceu sua teoria da propagação do calor em corpos sólidos mantendo a mesma tradição da mecânica racional, a qual reduzia os fenômenos naturais à análise matemática. Contudo, ele rompeu com a abordagem tradicional ao ignorar as hipóteses sobre a natureza do calor e criar um modelo físico no qual as leis da mecânica não se aplicam aos fenômenos do calor. Os trabalhos em história da ciência, que abordam as obras de Fourier, são massivamente direcionados à matemática e muito pouco é explorado do ponto de vista da física. Neste trabalho pretendemos promover esse enfoque com uma análise das bases conceituais e epistemológicas envolvidas na construção da teoria da condução do calor de Fourier, além de demonstrar que seu trabalho nessa área emerge como uma abordagem autônoma. Quanto ao ensino de física, o resultado dessa pesquisa pode contribuir para uma visão mais clara da natureza da ciência através de seus procedimentos, seu alcance e suas limitações. / In an environment ruled by the Newtonian paradigm, Fourier established his theory of heat propagation in solids focused on the same traditional conception from rational mechanics, which reduced the natural phenomena to the mathematical analysis. However, he challenged that principle by ignoring the hypotheses about the nature of heat and creating a physical model in which the laws of mechanics do not apply to the phenomena of heat. The most of the studies on Fourier¿s works in the field of the history of sciences are based on mathematics, and a very few of them are on physics. This study aims to add that missing approach with an analysis of the conceptual and epistemological bases involved in the formulation of the Fourier¿s theory of heat propagation; it also intends to show that his work emerged as a unique approach. About the area of the teaching of physics, the results here obtained can contribute to a clearer view of the nature of science through its procedures, scope, and limitations.