Results for 'Niels Siegbert Linnemann'

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  1. Have we Lost Spacetime on the Way? Narrowing the Gap between General Relativity and Quantum Gravity.Baptiste Le Bihan & Niels Siegbert Linnemann - 2019 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 65:112-121.
    Important features of space and time are taken to be missing in quantum gravity, allegedly requiring an explanation of the emergence of spacetime from non-spatio-temporal theories. In this paper, we argue that the explanatory gap between general relativity and non-spatio- temporal quantum gravity theories might significantly be reduced with two moves. First, we point out that spacetime is already partially missing in the context of general relativity when understood from a dynamical perspective. Second, we argue that most approaches to quantum (...)
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  2.  50
    Hints Towards the Emergent Nature of Gravity.Niels S. Linnemann & Manus R. Visser - 2018 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 64:1-13.
    A possible way out of the conundrum of quantum gravity is the proposal that general relativity (GR) emerges from an underlying microscopic description. Despite recent interest in the emergent gravity program within the physics as well as the philosophy community, an assessment of the general motivation for this idea is lacking at the moment. We intend to fill this gap in the literature by discussing the main arguments in favour of the hypothesis that the metric field and its dynamics are (...)
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  3.  61
    On Metaphysically Necessary Laws From Physics.Niels Linnemann - 2020 - European Journal for Philosophy of Science 10 (2):1-13.
    How does metaphysical necessity relate to the modal force often associated with natural laws? Fine argues that natural necessity can neither be obtained from metaphysical necessity via forms of restriction nor of relativization — and therefore pleads for modal pluralism concerning natural and metaphysical necessity. Wolff, 898–906, 2013) aims at providing illustrative examples in support of applying Fine’s view to the laws of nature with specific recourse to the laws of physics: On the one hand, Wolff takes it that equations (...)
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  4.  6
    On the Empirical Coherence and the Spatiotemporal Gap Problem in Quantum Gravity: And Why Functionalism Does Not (Have to) Help.Niels Linnemann - 2020 - Synthese 199 (S2):395-412.
    The empirical coherence problem of quantum gravity is the worry that a theory which does not fundamentally contain local beables located in space and time—such as is arguably the case for certain approaches to quantum gravity—cannot be connected to measurements and thus has its prospects of being empirically adequate undermined. Spacetime functionalism à la Lam and Wüthrich is said to solve this empirical coherence problem as well as bridging a severe conceptual gap between spatiotemporal structures of classical spacetime theories on (...)
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  5.  16
    On the empirical coherence and the spatiotemporal gap problem in quantum gravity: and why functionalism does not (have to) help.Niels Linnemann - 2020 - Synthese 199 (Suppl 2):1-18.
    The empirical coherence problem of quantum gravity is the worry that a theory which does not fundamentally contain local beables located in space and time—such as is arguably the case for certain approaches to quantum gravity—cannot be connected to measurements and thus has its prospects of being empirically adequate undermined. Spacetime functionalism à la Lam and Wüthrich is said to solve this empirical coherence problem as well as bridging a severe conceptual gap between spatiotemporal structures of classical spacetime theories on (...)
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  6. Renormalizability, Fundamentality and a Final Theory: The Role of UV-Completion in the Search for Quantum Gravity.Karen Crowther & Niels Linnemann - 2017 - British Journal for the Philosophy of Science:axx052.
    Principles are central to physical reasoning, particularly in the search for a theory of quantum gravity (QG), where novel empirical data is lacking. One principle widely adopted in the search for QG is UV completion: the idea that a theory should (formally) hold up to all possible high energies. We argue---/contra/ standard scientific practice---that UV-completion is poorly-motivated as a guiding principle in theory-construction, and cannot be used as a criterion of theory-justification in the search for QG. For this, we explore (...)
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  7.  33
    Renormalizability, Fundamentality, and a Final Theory: The Role of UV-Completion in the Search for Quantum Gravity.Karen Crowther & Niels Linnemann - 2019 - British Journal for the Philosophy of Science 70 (2):377-406.
    Principles are central to physical reasoning, particularly in the search for a theory of quantum gravity, where novel empirical data are lacking. One principle widely adopted in the search for QG is ultraviolet completion: the idea that a theory should hold up to all possible high energies. We argue— contra standard scientific practice—that UV-completion is poorly motivated as a guiding principle in theory-construction, and cannot be used as a criterion of theory-justification in the search for QG. For this, we explore (...)
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  8.  68
    What We Cannot Learn From Analogue Experiments.Karen Crowther, Niels S. Linnemann & Christian Wüthrich - 2019 - Synthese (Suppl 16):1-26.
    Analogue experiments have attracted interest for their potential to shed light on inaccessible domains. For instance, ‘dumb holes’ in fluids and Bose–Einstein condensates, as analogues of black holes, have been promoted as means of confirming the existence of Hawking radiation in real black holes. We compare analogue experiments with other cases of experiment and simulation in physics. We argue—contra recent claims in the philosophical literature—that analogue experiments are not capable of confirming the existence of particular phenomena in inaccessible target systems. (...)
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  9.  38
    Clocks and Chronogeometry: Rotating Spacetimes and the Relativistic Null Hypothesis.Tushar Menon, Niels Linnemann & James Read - 2018 - British Journal for the Philosophy of Science (4):1287-1317.
    Recent work in the physics literature demonstrates that, in particular classes of rotating spacetimes, physical light rays in general do not traverse null geodesics. Having presented this result, we discuss its philosophical significance, both for the clock hypothesis, and for the operational meaning of the metric field.
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  10.  9
    Non-Empirical Robustness Arguments in Quantum Gravity.Niels S. Linnemann - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 72:70-86.
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  11.  36
    The Epistemology of Spacetime.Neil Dewar, Niels Linnemann & James Read - 2022 - Philosophy Compass 17 (4).
    Philosophy Compass, Volume 17, Issue 4, April 2022.
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  12.  27
    Spacetime Functionalism in General Relativity and Quantum Gravity.Karen Crowther, Niels S. Linnemann & Christian Wüthrich - 2020 - Synthese 199 (S2):221-227.
    Introduction for the Synthese Special Issue on Spacetime Functionalism.
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  13.  10
    The Constructivist’s Programme and the Problem of Pregeometry.Niels Linnemann & Kian Salimkhani - manuscript
    Prominently, Norton argues against constructivism about spacetime theories, the doctrine that spatiotemporal structure in the dynamics only has derivative status. Among other things, he accuses Brown and Pooley's dynamical approach to special relativity of being merely half-way constructivist: setting up relativistic fields as presupposed in the dynamical approach to special relativity already requires spatiotemporal background structure. We first assess a recent solution proposal by Menon and then provide our very own defense of constructivism along two independent lines.
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  14.  20
    On the Status of Newtonian Gravitational Radiation.Niels Linnemann & James Read - 2021 - Foundations of Physics 51 (2):1-16.
    We discuss the status of gravitational radiation in Newtonian theories. In order to do so, we consider various options for interpreting the Poisson equation as encoding propagating solutions, reflect on the extent to which limit considerations from general relativity can shed light on the Poisson equation’s conceptual status, and discuss various senses in which the Poisson equation counts as a dynamical equation.
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  15.  2
    Quantisation as a Method of Generation: The Nature and Prospects of Theory Changes Through Quantisation.Niels Linnemann - 2022 - Studies in History and Philosophy of Science Part A 92:209-223.
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  16.  8
    Miracles Persist: A Reply to Sus.James Read & Niels Linnemann - 2022 - European Journal for Philosophy of Science 12 (1):1-10.
    In a recent article in this journal, Sus purports to account for what have been identified as the ‘two miracles’ of general relativity—that the local symmetries of all dynamical equations for matter fields coincide, and the symmetries of the dynamical equations governing matter fields coincide locally with the symmetries of the metric field—by application of the familiar result that every symmetry of the action is also a symmetry of the resulting equations of motion. In this reply, we argue that, while (...)
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  17. The Strong Arm of the Law: A Unified Account of Necessary and Contingent Laws of Nature.Salim Hirèche, Niels Linnemann, Robert Michels & Lisa Vogt - forthcoming - Synthese 199 (3-4):10211-10252.
    A common feature of all standard theories of the laws of nature is that they are "absolutist": They take laws to be either all metaphysically necessary or all contingent. Science, however, gives us reason to think that there are laws of both kinds, suggesting that standard theories should make way for "non-absolutist" alternatives: theories which accommodate laws of both modal statuses. In this paper, we set out three explanatory challenges for any candidate non-absolutist theory and discuss the prospects of the (...)
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  18. The modal status of the laws of nature. Tahko’s hybrid view and the kinematical/dynamical distinction.Salim Hireche, Niels Linnemann, Robert Michels & Lisa Vogt - 2021 - European Journal for Philosophy of Science 11 (1):1-15.
    In a recent paper, Tuomas Tahko has argued for a hybrid view of the laws of nature, according to which some physical laws are metaphysically necessary, while others are metaphysically contingent. In this paper, we show that his criterion for distinguishing between these two kinds of laws — which crucially relies on the essences of natural kinds — is on its own unsatisfactory. We then propose an alternative way of drawing the metaphysically necessary/contingent distinction for laws of physics based on (...)
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  19.  10
    Holography Without Holography: How to Turn Inter-Representational Into Intra-Theoretical Relations in AdS/CFT.Rasmus Jaksland & Niels S. Linnemann - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 71:101-117.
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  20.  24
    How Not to Establish the Non-Renormalizability of Gravity.Juliusz Doboszewski & Niels Linnemann - 2018 - Foundations of Physics 48 (2):237-252.
    General relativity cannot be formulated as a perturbatively renormalizable quantum field theory. An argument relying on the validity of the Bekenstein–Hawking entropy formula aims at dismissing gravity as non-renormalizable per se, against hopes that d-dimensional GR could turn out to have a non-perturbatively renormalizable d–dimensional quantum field theoretic formulation. In this note we discuss various forms of highly problematic semi-classical extrapolations assumed by both sides of the debate concerning what we call The Entropy Argument, and show that a large class (...)
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  21.  40
    Quantum Gravity in a Laboratory?Nick Huggett, Niels S. Linnemann & Mike D. Schneider - manuscript
    It has long been thought that observing distinctive traces of quantum gravity in a laboratory setting is effectively impossible, since gravity is so much weaker than all the other familiar forces in particle physics. But the quantum gravity phenomenology community today seeks to do the (effectively) impossible, using a challenging novel class of `tabletop' Gravitationally Induced Entanglement (GIE) experiments, surveyed here. The hypothesized outcomes of the GIE experiments are claimed by some (but disputed by others) to provide a `witness' of (...)
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  22.  74
    The Philosophical Writings of Niels Bohr.Niels Bohr - 1987 - Ox Bow Press.
    v. 1. Atomic theory and the description of nature -- v. 2. Essays 1932-1957 on atomic physics and human knowledge -- v. 3. Essays 1958-1962 on atomic physics and human knowledge -- v. 4. Causality and complementarity.
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  23. Niels Bohr an Essay Dedicated to Him on the Occasion of His Sixtieth Birthday, October 7, 1945.L. Rosenfeld & Niels Henrik David Bohr - 1961 - North-Holland Publishing Co.
     
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  24. Symposium Niels Bohr Centennial.Niels Bohr Centennial - 1992 - In Edna Ullmann-Margalit (ed.), The Scientific Enterprise. Kluwer Academic Publishers. pp. 261.
     
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  25. The Philosophical Writings of Niels Bohr Vol. I-Iv.Niels Bohr - 1987 - Ox Bow Press.
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  26.  44
    Machian Comparativism About Mass.Niels C. M. Martens - 2022 - British Journal for the Philosophy of Science 73 (2):325-349.
    Absolutism about mass within Newtonian gravity claims that mass ratios obtain in virtue of absolute masses. Comparativism denies this. Defenders of comparativism promise to recover all the empirical and theoretical virtues of absolutism, but at a lower ‘metaphysical cost’. This article develops a Machian form of comparativism about mass in Newtonian gravity, obtained by replacing Newton’s constant in the law of universal gravitation by another constant divided by the sum over all masses. Although this form of comparativism is indeed empirically (...)
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  27.  56
    Niels Bohr on the Wave Function and the Classical/Quantum Divide.Henrik Zinkernagel - 2016 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 53:9-19.
    It is well known that Niels Bohr insisted on the necessity of classical concepts in the account of quantum phenomena. But there is little consensus concerning his reasons, and what he exactly meant by this. In this paper, I re-examine Bohr’s interpretation of quantum mechanics, and argue that the necessity of the classical can be seen as part of his response to the measurement problem. More generally, I attempt to clarify Bohr’s view on the classical/quantum divide, arguing that the (...)
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  28. Papirer. Anden Forøede Udg. Ved Niels Thulstrup.Søen Kierkegaard & Niels Thulstrup - 1968 - Gyldendal.
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  29. Atomic Physics and Human Knowledge.Niels Bohr - 1958 - New York: Wiley.
    These articles and speeches by the Nobel Prize-winning physicist date from 1934 to 1958. Rather than expositions on quantum physics, the papers are philosophical in nature, exploring the relevance of atomic physics to many areas of human endeavor. Includes an essay in which Bohr and Einstein discuss quantum and_wave equation theories. 1961 edition.
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  30.  20
    Atomic Theory and the Description of Nature.Niels Bohr - 1934 - Ox Bow Press.
    Introductory survey -- Atomic theory and mechanics -- The quantum postulate and the recent development of atomic theory -- The quantum of action and the description of nature -- The atomic theory and the fundamental principles underlying the description of nature.
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  31.  22
    Sophistry About Symmetries?Niels C. M. Martens & James Read - 2020 - Synthese 199 (1-2):315-344.
    A common adage runs that, given a theory manifesting symmetries, the syntax of that theory should be modified in order to construct a new theory, from which symmetry-variant structure of the original theory has been excised. Call this strategy for explicating the underlying ontology of symmetry-related models reduction. Recently, Dewar has proposed an alternative to reduction as a means of articulating the ontology of symmetry-related models—what he calls sophistication, in which the semantics of the original theory is modified, and symmetry-related (...)
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  32.  22
    Katherine Richardson: An Oceanographer with a Global Outlook and a Pioneer in Sustainability Science Interview by Bernard Hubert and Niels Halberg.Katherine Richardson, Bernard Hubert & Niels Halberg - 2014 - Natures Sciences Sociétés 22 (4):359-365.
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  33. Discussion with Einstein on Epistemological Problems in Atomic Physics.Niels Bohr - 1949 - In Paul Arthur Schilpp (ed.), The Library of Living Philosophers, Volume 7. Albert Einstein: Philosopher-Scientist. Open Court. pp. 199--241.
  34.  52
    Niels Bohr and the Philosophy of Physics: Twenty-First Century Perspectives.Jan Faye & Henry Folse (eds.) - 2017 - Bloomsbury.
    Niels Bohr and Philosophy of Physics: Twenty-First Century Perspectives examines the work, influences and legacy of the Nobel Prize physicist and philosopher of experiment Niels Bohr. While covering Bohr's groundbreaking contribution to quantum mechanics, this collection reveals the philosophers who influenced his work. Linking him to the pragmatist C.I. Lewis and the Danish philosopher Harald Høffding, it draws strong similarities between Bohr's philosophy and the Kantian way of thinking. Addressing the importance of Bohr's views of classical concepts, it (...)
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  35. Siegbert W. Becker, The Foolishness of God : The Place of Reason in the Theology of Martin Luther. Milwaukee : Northwestern Publishing House, 1982. Pp. X, 266. [REVIEW]R. Keen - 1983 - Moreana 20 (3-4):99-101.
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  36. Modeling Evaluations of Low-Level Sounds in Everyday Situations Using Linear Machine Learning for Variable Selection.Siegbert Versümer, Jochen Steffens, Patrick Blättermann & Jörg Becker-Schweitzer - 2020 - Frontiers in Psychology 11.
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  37. Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?Niels Bohr - 1935 - Physical Review 48 (696--702):696--702.
  38.  4
    Niels Bohr and Contemporary Philosophy.Jan Faye & Henry J. Folse (eds.) - 1994 - Kluwer Academic Publishers.
    Since the Niels Bohr centenary of 1985 there has been an astonishing international surge of scholarly analyses of Bohr's philosophy. Now for the first time in Niels Bohr and Contemporary Philosophy Jan Faye and Henry Folse have brought together sixteen of today's leading authors who have helped mould this new round of discussions on Bohr's philosophy. In fifteen entirely new, previously unpublished essays we discover a surprising variety of the different facets of Bohr as the natural philosopher whose (...)
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  39.  21
    The (Un)Detectability of Absolute Newtonian Masses.Niels C. M. Martens - 2019 - Synthese 198 (3):2511-2550.
    Absolutism about mass claims that mass ratios obtain in virtue of absolute masses. Comparativism denies this. Dasgupta, Oxford studies in metaphysics, Oxford University Press, Oxford, 2013) argues for comparativism about mass, in the context of Newtonian Gravity. Such an argument requires proving that comparativism is empirically adequate. Dasgupta equates this to showing that absolute masses are undetectable, and attempts to do so. This paper develops an argument by Baker to the contrary: absolute masses are in fact empirically meaningful, that is (...)
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  40.  18
    Niels Bohr and the Formalism of Quantum Mechanics.Dennis Dieks - unknown
    It has often been remarked that Bohr's writings on the interpretation of quantum mechanics make scant reference to the mathematical formalism of quantum theory; and it has not infrequently been suggested that this is another symptom of the general vagueness, obscurity and perhaps even incoherence of Bohr's ideas. Recent years have seen a reappreciation of Bohr, however. In this article we broadly follow this "rehabilitation program". We offer what we think is a simple and coherent reading of Bohr's statements about (...)
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  41.  23
    The Aim Justifies the Means—Differences Among Musical and Nonmusical Means of Relaxation or Activation Induction in Daily Life.Mattes B. Kappert, Alexandra Wuttke-Linnemann, Wolff Schlotz & Urs M. Nater - 2019 - Frontiers in Human Neuroscience 13.
  42.  28
    Essays 1958-1962 on Atomic Physics and Human Knowledge.Niels Bohr - 1963 - Ox Bow Press.
    Quantum physics and philosophy--causality and complementarity -- The unit of human knowledge -- The connection between the sciences -- Light and life revisited -- The Rutherford memorial lecture 1958 -- The genesis of quantum mechanics -- The Solvay meetings and the development of quantum physics.
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  43.  50
    The Metaphysics of Emergent Spacetime Theories.Niels C. M. Martens - 2019 - Philosophy Compass 14 (7).
    The debate concerning the ontological status of spacetime is standardly construed as a dilemma between substantivalism and relationalism. I argue that a trilemma is more appropriate, emergent spacetime theories being the third category. Traditional philosophical arguments do not distinguish between emergent spacetime and substantivalism. It is arguments from physics that suggest giving up substantivalism in favour of emergent spacetime theories. The remaining new dilemma is between emergent spacetime and relationalism. I provide a list of questions, which one should consider when (...)
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  44. The Quantum Postulate and the Recent Development of Atomic Theory.Niels Bohr - 1928 - Nature 121:580--590.
  45.  2
    Niels Bohr: His Heritage and Legacy -- An Anti-Realist View of Quantum Mechanics.Jan Faye - 1991 - Springer.
    The bulk of the present book has not been published previously though Chapters II and IV are based in part on two earlier papers of mine: "The Influence of Harald H!1lffding's Philosophy on Niels Bohr's Interpretation of Quantum Mechanics", which appeared in Danish Yearbook of Philosophy, 1979, and "The Bohr-H!1lffding Relationship Reconsidered", published in Studies in History and Philosophy of Science, 1988. These two papers comple ment each other, and in order to give the whole issue a more extended (...)
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  46.  6
    Niels Bohr's Philosophy of Quantum Physics in the Light of the Helmholtzian Tradition of Theoretical Physics.Steen Brock - 2003 - Logos Verlag Berlin.
    Steen Brock paints a cross-disciplinary picture of the philosophical and scientific background for the rise of the quantum theory. He accounts for the unity of Kantian metaphysics of Nature, the Helmholtzian principles, and the Hamiltonian methods of modern pre-quantum physics. Brock shows how Planck's vision of a generalization of classical physics implies that the original quantum mechanics of Heisenberg can be regarded as a successful attempt to maintain this modern unity of physics.However, for Niels Bohr, the unity of science (...)
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  47. Niels Bohr: His Heritage and Legacy.Jan Faye - 1991 - Dordrecht: Kluwer Academic Publishers.
    The book gives an painstaking analysis of Niels Bohr's understanding of quantum mechanics based on a claim that Bohr was influenced by Harald Høffding's approach to philosophical problems.
     
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  48.  27
    Dark Matter = Modified Gravity? Scrutinising the Spacetime–Matter Distinction Through the Modified Gravity/ Dark Matter Lens.Niels C. M. Martens & Dennis Lehmkuhl - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 72:237-250.
    This paper scrutinises the tenability of a strict conceptual distinction between space and matter via the lens of the debate between modified gravity and dark matter. In particular, we consider Berezhiani and Khoury's novel 'superfluid dark matter theory' as a case study. Two families of criteria for being matter and being spacetime, respectively, are extracted from the literature. Evaluation of the new scalar field postulated by SFDM according to these criteria reveals that it is as much matter as anything could (...)
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  49. Siegbert W. Becker, Revelaton : The Distant Triumph Song. Milwaukee : Northwestern Publishing House. 1985. Pp. Xii-371.Germain Marc’Hadour - 1987 - Moreana 24 (3-4):135-138.
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  50. Niels Bohr's Philosophy of Physics.Dugald Murdoch - 1987 - Cambridge University Press.
    Murdoch describes the historical background of the physics from which Bohr's ideas grew; he traces the origins of his idea of complementarity and discusses its meaning and significance. Special emphasis is placed on the contrasting views of Einstein, and the great debate between Bohr and Einstein is thoroughly examined. Bohr's philosophy is revealed as being much more subtle, and more interesting than is generally acknowledged.
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