Modern (theoretical) physics seems to be in deep crisis today as many of its core aspects are not empirically well-confirmed. Heated exchanges among physicists on the scientific status of physical theories with little or, at best, a tenuous connection to possible experimental tests is highly visible in the popular scientific literature. Some physicists (e.g., Carroll 2014, 2019; Ijjas et al., 2017) argue that science must discard empirical testability as one of its defining properties and the highly explanatory theories of (...) present-day physics should be exempted from experimental testing, while others (e.g., Ellis & Silk 2014) spot in these arguments (for softening the testability or falsifiability requirement for modern physics) a dangerous tendency to undermine science. The philosopher of science who naturally draws most attention in these current debates is Karl Popper (1902-1994). His views, however, are often misrepresented in these debates. The prime objective of this paper is to explain how a more enlightened perspective on the ongoing debates can be obtained by a careful scrutiny of the Popperian criterion of falsifiability. As a first step in achieving this objective we will analyze the two major (conceptual) failures on which the current controversies rest. Our next step will be examining the controversial string theory to see whether the criteria of falsifiability is a ‘blunt instrument’ for determining its scientific status. (shrink)

This article aims to contribute to the ongoing task of clarifying the relationships between reality, probability, and nonlocality in quantum physics. It is in part stimulated by Khrennikov’s argument, in several communications, for “eliminating the issue of quantum nonlocality” from the analysis of quantum entanglement. I argue, however, that the question may not be that of eliminating but instead that of further illuminating this issue, a task that can be pursued by relating quantum nonlocality to other key features of quantum (...) phenomena. I suggest that the following features of quantum phenomena and quantum mechanics, distinguishing them from classical phenomena and classical physics— the irreducible role of measuring instruments in defining quantum phenomena, discreteness, complementarity, entanglement, quantum nonlocality, and the irreducibly probabilistic nature of quantum predictions—are all interconnected, so that it is difficult to give an unconditional priority to any one of them. To argue this case, I shall consider quantum phenomena and quantum mechanics from a nonrealist or, in terms adopted here, “reality-without-realism” perspective. This perspective extends Bohr’s view, grounded in his analysis of the irreducible role of measuring instruments in the constitution of quantum phenomena. (shrink)

Roughly, instrumentalism is the view that science is primarily, and should primarily be, an instrument for furthering our practical ends. It has fallen out of favour because historically influential variants of the view, such as logical positivism, suffered from serious defects. -/- In this book, however, Darrell P. Rowbottom develops a new form of instrumentalism, which is more sophisticated and resilient than its predecessors. This position—‘cognitive instrumentalism’—involves three core theses. First, science makes theoretical progress primarily when it furnishes (...) us with more predictive power or understanding concerning observable things. Second, scientific discourse concerning unobservable things should only be taken literally in so far as it involves observable properties or analogies with observable things. Third, scientific claims about unobservable things are probably neither approximately true nor liable to change in such a way as to increase in truthlikeness. -/- There are examples from science throughout the book, and Rowbottom demonstrates at length how cognitive instrumentalism fits with the development of late nineteenth- and early twentieth-century chemistry and physics, and especially atomic theory. Drawing upon this history, Rowbottom also argues that there is a kind of understanding, empirical understanding, which we can achieve without having true, or even approximately true, representations of unobservable things. In closing the book, he sets forth his view on how the distinction between the observable and unobservable may be drawn, and compares cognitive instrumentalism with key contemporary alternatives such as structural realism, constructive empiricism, and semirealism. -/- Overall, this book offers a strong defence of instrumentalism that will be of interest to scholars and students working on the debate about realism in philosophy of science. (shrink)

I argue that if simplicity is a theoretical virtue and some theoretical virtues are the constituents of the aims of theorizing in physics—i.e., theory choice and theory development in physics—and scientific rationality is instrumental rationality, then simplicity cannot be a mere means to achieve the aims. I do this by showing that considering simplicity as a mere means brings about counterintuitive ramifications concerning scientific rationality. These counterintuitive ramifications can be avoided if we consider simplicity a constituent of the aims of (...) theorizing in physics. (shrink)

Piercing incisively and deeply into the nature of the overlapping of the material andmental realms. Aage Petersen uncovers the reciprocal relations between quantum physics and theconcepts of metaphysics and epistemology, assessing the extent to which each has influenced theother. The author is eminently qualified to undertake this important work, which grew out of hisclose contact with Neils Bohr and his Copenhagen school during the years 1952-1962.Although themathematical formalism of quantum physics has long since been established, the question of itsphysical interpretation (...) is not yet closed, and the question of its philosophical interpretationremains in a formative state. The most widely accepted physical interpretation of the quantalformalism emerged from discussions between Bohr and Heisenberg in the winter of 1926-1927. ThisCopenhagen Interpretation centers around the relations of indeterminacy around the relations ofindeterminacy and the concept of complementarity, and was refined but not radically altered in theyears following, especially during the famous debate with Einstein on the completeness possible inthe description of events. The philosophical interpretation has proceeded along two principal lines:Bohr's emphasis on complementarity as a unifying concept, and Heisenberg's exploration of therelationship of quantum physics to the traditional categories of philosophy.To Bohr's mind, thecentral feature of human knowledge is the distinction between subject and object. The indeterminacyof the placing of the partition between instrument and system, which played so large a part inquantal description was, Bohr believed, an expression of the general relation between the knower andthe knowable. He thus sought to find relationships of complementarity in areas beyond quantumphysics.Quantum physics and traditional philosophy certainly relate enough to interact--even thoughthe effects of interaction may produce uncertain results. Heisenberg's view also emphasizes thatscience describes, not nature itself, but the interplay between nature and man, nature as affectedby man's method of questioning, thus denying the school of philosophical thought that began withDescartes' sharp separation of the World and the I.The author's investigation leads him as well tobelieve that complementarity is deeply linked to the basis of philosophy, but that the details ofthe relationship are so obscure that some other feature of quantum physics that makes amore directconnection with philosophy should be sought. He is led to choose the idea of correspondence as suchfeature. This idea played a key role in the development of the matrix version of the formalism andof the Copenhagen interpretation.Mathematically, the idea of correspondence was seen to imply thatquantal formalisms should emerge as generalizations of classical entities, that matrix mechanics wasa generalization of classical Hamiltonian mechanics. It is in this possibility of treating thetraditional categories of philosophy as limits of a more general scheme, or as analogies of a deeperorder, that the fruitfulness of the correspondence idea lies. (shrink)

Making Sense of Inner Sense 'Terra cognita' is terra incognita. It is difficult to find someone not taken abackand fascinated by the incomprehensible but indisputable fact: there are material systems which are aware of themselves. Consciousness is self-cognizing code. During homo sapiens's relentness and often frustrated search for self-understanding various theories of consciousness have been and continue to be proposed. However, it remains unclear whether and at what level the problems of consciousness and intelligent thought can be resolved. Science's greatest (...) challenge is to answer the fundamental question: what precisely does a cognitive state amount to in physical terms? Albert Einstein insisted that the fundamental ideas of science are essentially simple and can be expressed in a language comprehensible to everyone. When one thinks about the complexities which present themselves in modern physics and even more so in the physics of life, one may wonder whether Einstein really meant what he said. Are we to consider the fundamental problem of the mind, whose understanding seems to lie outside the limits of the mind, to be essentially simple too? Knowledge is neither automatic nor universally deductive. Great new ideas are typically counterintuitive and outrageous, and connecting them by simple logical steps to existing knowledge is often a hard undertaking. The notion of a tensor was needed to provide the general theory of relativity; the notion of entropy had to be developed before we could get full insight into the laws of thermodynamics; the notice of information bit is crucial for communication theory, just as the concept of a Turing machine is instrumental in the deep understanding of a computer. To understand something, consciousness must reach an adequate intellectual level, even more so in order to understand itself. Reality is full of unending mysteries, the true explanation of which requires very technical knowledge, often involving notions not given directly to intuition. Even though the entire content and the results of this study are contained in the eight pages of the mathematical abstract, it would be unrealistic and impractical to suggest that anyone can gain full insight into the theory that presented here after just reading abstract. In our quest for knowledge we are exploring the remotest areas of the macrocosm and probing the invisible particles of the microcosm, from tiny neutrinos and strange quarks to black holes and the Big Bang. But the greatest mystery is very close to home: the greatest mystery is human consciousness. The question before us is whether the logical brain has evolved to a conceptual level where it is able to understand itself. (shrink)

Biosemiotics—a discipline in the process of becoming established as a new research enterprise—faces a double task. On the one hand it must carry out the theoretical and experimental investigation of an enormous range of semiotic phenomena relating organisms to their internal components and to other organisms (e.g., signal transduction, replication, codes, etc.). On the other hand, it must achieve a philosophical re-conceptualization and generalization of theoretical biology in light of the essential role played by semiotic notions in biological explanation and (...) modeling. This paper attempts to contribute to the second task by tracing some aspects of the historical evolution of explanatory models in biology. In so doing, a parallel can be drawn between the present status of biosemiotics and that of physics during the early decades of the last century. By following the career of the concept instrument (organon) in Aristotelian science, we revisit historical stages of the antithetical (but often complementary) roles of mechanical and teleological forms of explanation. The impact of the introduction of the organic codes in biology is seen to be somewhat analogous to that of the introduction of the quantum of action in physics. Faced with intractable empirical facts, physicists combined experimental results and bold philosophical speculation to create quantum physics—a wider, deeper framework that accommodates the new facts through a wholesale reformulation of the classical ideas. Essential to this development was the articulation of the epistemic functions of instruments, which was absent from classical physics. Similarly, the consideration of the role of instruments in biology may lead to a synthesis of Aristotelian and Kantian intuitions within a wider framework capable of joining now separate perspectives, such as Jablonka’s four-fold view of inheritance information, Barbieri’s theory of artifactual copymakers and codemakers, and recently developed models of causation based on the idea of manipulative interventions. (shrink)

We apply a formalism developed previously to study the notion of the complexity of states in a general statistical theory. We identify the extreme points of the instrument sets as those instruments that view an intrinsic complexity of states and are uncontaminated by stochastic contributions of the experimenter. Various notions of entropy of a state are investigated.

The Concept of Physical Law is an original and creative defense of the Regularity theory of physical law, the concept that physical laws are nothing more than descriptions of whatever universal truths happen to be instanced in nature. Professor Swartz clearly identifies and analyzes the arguments and intuitions of the opposing Necessitarian theory, and argues that the standard objection to the Regularity theory turns on a mistaken view of what Regularists mean by 'physical impossibility'; that (...) it is impossible to construct an empirical test that can distinguish between events Necessitarians call 'mere accidents' and those they call 'nornologically necessary', and that the Necessitarian theory cannot account fot human beings' free wills. Other topics in this important work include: the distinction between instrumental scientific laws and true physical laws; the distinction between failure and doom; potentialities; miracles and marvels; predictability and uniformity; statistical and numerical laws; and necessity-in-praxis. (shrink)

Piercing incisively and deeply into the nature of the overlapping of the material andmental realms. Aage Petersen uncovers the reciprocal relations between quantum physics and theconcepts of metaphysics and epistemology, assessing the extent to which each has influenced theother. The author is eminently qualified to undertake this important work, which grew out of hisclose contact with Neils Bohr and his Copenhagen school during the years 1952-1962.Although themathematical formalism of quantum physics has long since been established, the question of itsphysical interpretation (...) is not yet closed, and the question of its philosophical interpretationremains in a formative state. The most widely accepted physical interpretation of the quantalformalism emerged from discussions between Bohr and Heisenberg in the winter of 1926-1927. ThisCopenhagen Interpretation centers around the relations of indeterminacy around the relations ofindeterminacy and the concept of complementarity, and was refined but not radically altered in theyears following, especially during the famous debate with Einstein on the completeness possible inthe description of events. The philosophical interpretation has proceeded along two principal lines:Bohr's emphasis on complementarity as a unifying concept, and Heisenberg's exploration of therelationship of quantum physics to the traditional categories of philosophy.To Bohr's mind, thecentral feature of human knowledge is the distinction between subject and object. The indeterminacyof the placing of the partition between instrument and system, which played so large a part inquantal description was, Bohr believed, an expression of the general relation between the knower andthe knowable. He thus sought to find relationships of complementarity in areas beyond quantumphysics.Quantum physics and traditional philosophy certainly relate enough to interact--even thoughthe effects of interaction may produce uncertain results. Heisenberg's view also emphasizes thatscience describes, not nature itself, but the interplay between nature and man, nature as affectedby man's method of questioning, thus denying the school of philosophical thought that began withDescartes' sharp separation of the World and the I.The author's investigation leads him as well tobelieve that complementarity is deeply linked to the basis of philosophy, but that the details ofthe relationship are so obscure that some other feature of quantum physics that makes amore directconnection with philosophy should be sought. He is led to choose the idea of correspondence as suchfeature. This idea played a key role in the development of the matrix version of the formalism andof the Copenhagen interpretation.Mathematically, the idea of correspondence was seen to imply thatquantal formalisms should emerge as generalizations of classical entities, that matrix mechanics wasa generalization of classical Hamiltonian mechanics. It is in this possibility of treating thetraditional categories of philosophy as limits of a more general scheme, or as analogies of a deeperorder, that the fruitfulness of the correspondence idea lies. (shrink)

At conceptual and linguistic levels of cognition, events are said to be represented in terms of abstract categories, for example, the sentence Jackie cut the bagel with a knife encodes the categories Agent (i.e., Jackie) and Patient (i.e., the bagel). In this paper, we ask whether entities such as the knife are also represented in terms of such a category (often labeled “Instrument”) and, if so, whether this category has a prototype structure. We hypothesized the Proto-instrument is a tool: a (...) physical object manipulated by an intentional agent to affect a change in another individual or object. To test this, we asked speakers of English, Dutch, and German to complete an event description task and a sentence acceptability judgment task in which events were viewed with more or less prototypical instruments. We found broad similarities in how English, Dutch, and German partition the semantic space of instrumental events, suggesting there is a shared concept of the Instrument category. However, there was no evidence to support the specific hypothesis that tools are the core of the Instrument category—instead, our results suggest the most prototypical Instrument is the direct extension of an intentional agent. This paper supports theoretical frameworks where thematic roles are analyzed in terms of prototypes and suggests new avenues of research on how instrumental category structure differs across linguistic and conceptual domains. (shrink)

Spectroscopy is a scientific topic at the interface between Chemistry and Physics, which is taught at high school level in relation with its fundamental applications in Analytical Chemistry. In the first part of the paper, the topic of spectroscopy is analyzed having in mind the well-known Johnstone’s triangle of chemistry education, putting in evidence the way spectroscopy is usually taught at the three levels of chemical knowledge: macroscopic/phenomenological, sub-microscopic/molecular and symbolic ones. Among these three levels, following Johnstone’s recommendations the macroscopic (...) one is the most useful for high school students who learn spectroscopy for the first time. Starting from these premises, in the second part of the paper, we propose a didactic sequence which is inspired by the historical evolution of spectroscopic instruments from the first spectroscopes invented by Gustav Kirchhoff and Robert Bunsen in 1860 to the UV–vis spectrophotometers which became common since the 1960s. The idea behind our research is to analyze the conceptual advancements through the history of spectroscopy and to identify the key episodes/experiments and spectroscopic instruments. For each of them, a didactic activity, typically an experiment, is then proposed underlining the relevant aspects from the chemistry education point of view. The present paper is the occasion to reflect on the potentialities of an historical approach combined with a laboratorial one, and to discuss the role of historical instruments and related technological improvements to teach spectroscopy. (shrink)

This book is a collection of eight in-depth and detailed research papers authored by Dr. Raman K Attri between 1996 to 2005. The book presents early-career scientific work by the author as a scientist at a research organization. The book provides the conceptual background and key electronics and mechanical design principles used in designing sensors and instrumentation systems to measure snow hydrological parameters. The systems discussed in this book can be used to measure snow depth, layer temperature, temperature distribution profile, (...) surface porosity, etc. The snow parameters measured from instruments and sensors discussed in this book are integrated into larger systems and are used in computer-driven models for snow avalanche predictions. The book presents the design challenges and design methods from electronics and instrumentation design point of view. While the book provides essential understanding of analog electronics design and associated mechanical design for snow hydrological sensors, the book also presents the background theoretical and mathematical models from snow hydrology physics that governs this electronics design. (shrink)

As in religious traditions, the soul organizes entirely the human condition horizon; postmodern culture sets the body as the organizing centre of its sacralizing mechanisms. Some even speak about a cult and about ritual mechanisms having a religious charge. On the one hand, the body is attributed a symbolic dimension surfacing in the fight against the finite and life’s lack of meaning. On the other, turning the body into a centre of the existential universe triggers a better delineation of the (...) functions it may fulfill. An important role belongs to the networking function that crosses over the human inhabited worlds, from the physical one to the spiritual and religious one. To highlight these aspects, I called on the reflections in Aurel Codoban’s communication philosophy. The new view on corporality brings the image of body as language, as communication instrument and as significant surface. Against this background, the body sets a self-concern whose consequence, symbolically, is a dialectic movement of body and soul nourishing one other and improving one another in light of authenticity. (shrink)

This book is a preliminary treatment investigating how quantum physics' view of the world is related to the central concepts and doctrines of the western philosophical tradition. Recognizing the analogy between the subject-object distinction in philosophy and the instrument-system distinction in physics, Petersen sees that the problems of description in quantum theory and in philosophy have a profound kinship and suggests that quantal description and the concept of complementarity might play an important role in the solution of those problems. (...) A principal focus in this study thus becomes the idea of correspondence, through which physicists sought to establish the relation between quantum and classical physics. Petersen's approach is largely historical, beginning with an account of the development of ontological philosophy that dwells largely on Berkeley, Locke, Hume, and Kant in order to get at the point of contact between epistemology and ontology. Then comes a short history of atomism and an account of the correspondence idea in quantum physics. Finally he uses his historical accounts in a discussion of the relation of quantum physics to traditional philosophy. There is a summary in Danish at the end.--S. O. H. (shrink)

Physical literacy, a concept introduced by Britain’s physical education and phenomenological scholar, Margaret Whitehead, who aligned the term with her monist view of the human condition and emphasis that we are essentially embodied beings in-the-world, is a foundational hub of recent physical education curricular revision. The adoption of the term serves a political purpose as it helps stakeholders advocate for the educational, specifically literacy, rights of the whole child. Yet, one might wonder what impact conceptual shifts (...) of becoming “physically literate” in lieu of becoming “physically educated” have on physical education research and practice. Terms such as “reading” the game and metaphors that describe the body as an “instrument of expression” are entering the lexicon of physical education but from a seemingly cognitive frame of reference. Arguably, the extent to which the adoption of physical literacy has on dissolving Cartesian views of the body and the mechanization of movement it performs has yet to be questioned. This article thus acts as an invitation to explore physical literacy in a Merleau-Pontian inspired act of inscribing the world through movement and how a reading of a reversible imprint might awaken a more fluent sense of what it means to become physically literate as new curricular pathways in the field of physical education emerge. (shrink)

This book is the apologia of a frustrated reductionist. The frustration derives from Rosenberg's clear perception that the project of physicalist reduction, the reduction of all the sciences of complex objects to physics, is impossible, at least, as he often says, for beings hampered by our limited cognitive and computational abilities. The reductionism that survives this realisation is purely metaphysical. It is the firm commitment to the view that ultimately whatever happens happens because of the universally lawlike behavior of (...) the physical particles of which everything is composed. What holds these theses together is supervenience. The physical correlate of a higher level property or kind is typically massively disjunctive. Thus although the intrinsic properties of a complex thing are fully determined by the properties of the physical particles of which they are composed, the physical property necessary and sufficient to determine such a higher level property is too complex and disjunctive for our feeble minds to grasp. The underlying physical heterogeneity of the properties or kinds we distinguish at higher structural levels is such as to make it vanishingly unlikely that these will enter into the kinds of universal laws characteristic of physics or chemistry. (shrink)

We present a brief history of decoherence, from its roots in the foundations of classical statistical mechanics, to the current spin bath models in condensed matter physics. We analyze the philosophical import of the subject matter in three different foundational problems, and find that, contrary to the received view, decoherence is less instrumental to their solutions than it is commonly believed. What makes decoherence more philosophically interesting, we argue, are the methodological issues it draws attention to, and the question (...) of the universality of quantum mechanics. (shrink)

For the last three decades, the discussion on Hilary Putnam’s provocative suggestions around the issue of realism has raged widely. Putnam’s various formulations of, and arguments for, what he called internal realism in contrast to what he called metaphysical realism have been scrutinised from a variety of perspectives. One angle of attack has been missing, though: the view from the social sciences and the ontology of society. This perspective, I believe, will provide further confirmation to the observation that Putnam’s (...) two concepts of realism are all too aggregative in that they conflate elements that had better be kept distinct, at least for many important purposes (e.g. Niiniluoto 1996). The present essay can be read as an argument for a topic-specific examination of realism. This means that it challenges the overall validity of Richard Boyd’s arguments against what he calls “realism about”, that is, against “a certain fragmented conception of scientific realism, one according to which realism is deeply topic specific” (Boyd 1990, p. 175). Boyd takes the ‘x’ in realism about x” to designate two kinds of things: entities postulated in scientific theories (“realism about the ether” and “realism about higher taxa”) and scientific disciplines (“realism about physics” and “realism about biology”) (ibid., pp. 175, 190). He also suggests that “it seems possible cogently to accept realism about the natural sciences while denying it about at least some of the social sciences” (ibid., p. 191). In Boyd’s view, the possibility of realism about social sciences is undermined by their weak instrumental success; it is the instrumental reliability of method that he takes as the basis for a realist account of science. I do not underwrite this connection between realism and instrumental success, thus I am not compelled to reject realism about social sciences on these grounds; and, as we shall see, social sciences have other peculiarities as well (see Mäki 1996). I think we should, at least to some degree, disaggregate and relativize the issue of realism. I do have sympathy with Boyd’s strategic arguments against “realisms about”, but yet I believe realists will be better off by adopting a more concrete and localized approach to the issue (Mäki 2005). Social objects and social sciences deserve a separate treatment. There are two strategies that can be followed in examining a realism about x (type of entity, theory, discipline). One is to first fix the meaning of realism’ and then specify the extension of ‘x’. This is Boyd’s strategy. The other is to fix some part of the extension of ‘x’ and then adjust the meaning of ‘realism’ so as to accommodate whatever peculiarities the x in question may have (and finally to check whether the adjusted meaning of ‘realism’ meets the criteria of a minimal notion of realism; it would be here that we encounter a relatively fixed idea of some minimal realism, or a set of realist intuitions). The latter is my approach here. I begin with the interconnected ideas of “realism about social objects” andrealism about social sciences”. I am not only interested in what comes after ‘about’; I am also interested in what goes before it, namely ‘realism’ itself. Here is one premise of the discussion: the issue of proper forms of realism for dealing with specific problems is an issue to be settled at least partly a posteriori. Here is the problem for which a solution will be sought: what constraints, if any, does what we know about the social sciences and society (as depicted by the social sciences and our commonsense views) impose upon the forms of realism that can justifiably be adopted about them? This paper suggests to offer only some partial insight into this issue. It seeks to do so indirectly by discussing Putnam’s characterizations of internal and metaphysical realism. The focus will be on two aspects of Putnam’s realisms: [1] the role and kinds of independence and dependence (in relation to the human mind and related things); and [2] the possibility of error. It is shown that the nature of social objects has implications concerning the appropriate constraints on [1] and [2], and thereby on the kinds of realism that are available to social scientists. (shrink)

This article aims at reducing the gap between mathematics and physics from a Wittgensteinian point of view. This gap is usually characterized by two discriminating features. The propositions of physics assert something which might be false; they have a hypothetical character. On the contrary, since mathematical propositions are rules that condition the form of assertions, they remain immune from falsification. The propositions of physics refer to facts that may confirm or refute them. On the contrary, since mathematical propositions have (...) no meaning independently of the demonstration procedures, it cannot be said that they refer to “facts” that pre-exist demonstrations. If we take a closer look, however, these two differences fade away. On the one hand, the propositions of physics are more resistant to experimental tests than has been said in the wake of logical positivism. On the other hand, the “factual” empirical material is defined and co-constituted by instruments whose arrangement is determined by the theory to be tested. I conclude by discussing the possibility of a Wittgensteinian philosophy of contemporary physics. (shrink)

This paper deals with a number of technical achievements that are instrumental for a dis-solution of the so-called "Hole Argument" in general relativity. Such achievements include: 1) the analysis of the "Hole" phenomenology in strict connection with the Hamiltonian treatment of the initial value problem. The work is carried through in metric gravity for the class of Christoudoulou-Klainermann space-times, in which the temporal evolution is ruled by the "weak" ADM energy; 2) a re-interpretation of "active" diffeomorphisms as "passive and metric-dependent" (...) dynamical symmetries of Einstein's equations, a re-interpretation which enables to disclose their (up to now unknown) connection to gauge transformations on-shell; understanding such connection also enlightens the real content of the Hole Argument or, better, dis-solves it together with its alleged "indeterminism"; 3) the utilization of the Bergmann-Komar "intrinsic pseudo-coordinates", defined as suitable functionals of the Weyl curvature scalars, as tools for a peculiar gauge-fixing to the super-hamiltonian and super-momentum constraints; 4) the consequent construction of a "physical atlas" of 4-coordinate systems for the 4-dimensional "mathematical" manifold, in terms of the highly non-local degrees of freedom of the gravitational field (its four independent "Dirac observables"). Such construction embodies the "physical individuation" of the points of space-time as "point-events", independently of the presence of matter, and associates a "non-commutative structure" to each gauge fixing or four-dimensional coordinate system; 5) a clarification of the multiple definition given by Peter Bergmann of the concept of "(Bergmann) observable" in general relativity. This clarification leads to the proposal of a "main conjecture" asserting the existence of i) special Dirac's observables which are also Bergmann's observables, ii) gauge variables that are coordinate independent (namely they behave like the tetradic scalar fields of the Newman-Penrose formalism). A by-product of this achievements is the falsification of a recently advanced argument asserting the absence of (any kind of) "change" in the observable quantities of general relativity. 6) a clarification of the physical role of Dirac and gauge variables as their being related to "tidal-like" and "inertial-like" effects, respectively. This clarification is mainly due to the fact that, unlike the standard formulations of the equivalence principle, the Hamiltonian formalism allows to define notion of "force" in general relativity in a natural way; 7) a proposal showing how the physical individuation of point-events could in principle be implemented as an experimental setup and protocol leading to a "standard of space-time" more or less like atomic clocks define standards of time. We conclude that, besides being operationally essential for building measuring apparatuses for the gravitational field, the role of matter in the non-vacuum gravitational case is also that of "participating directly" in the individuation process, being involved in the determination of the Dirac observables. This circumstance leads naturally to a peculiar new kind of "structuralist" view of the general-relativistic concept of space-time, a view that embodies some elements of both the traditional "absolutist" and "relational" conceptions. In the end, space-time point-events maintain a "peculiar sort of objectivity". Some hints following from our approach for the quantum gravity programme are also given. (shrink)

The present study aims to apply a program based on Hellison’s Teaching Personal and Social Responsibility Model (TPSR), traditionally used in Physical Education, to other educational subjects and examine the assessment of the teachers who carried it out during the 2018-2019 school year. The program was applied over eight months of one academic year and during at least 60% of the weekly class hours. Initially, 586 students participated, 429 being experimental subjects with 30 teachers, of whom 16 participated in (...) the interviews carried out, all of them being Secondary Education teachers. We used qualitative methodology through content analysis carried out with ATLAS.ti 7.1.3. The instruments used to collect information were semi-structured recorded group interviews. The conclusion is that the Personal and Social Responsibility Model can be applied to all subjects in the curriculum and is adaptable to any content and type of student body. As a basis for future research, we suggest the application of the model by all teachers involved in the same school year and the participation of students’ families. (shrink)

This book is an introduction to the foundation of quantum mechanics. As such, this book is perfect: it is the book that my former, physics undergraduate, self would have wanted to read. At the time, like typical physics undergraduates around the globe, I was taught to give up hope of ever understanding what quantum theory claims: at best, the theory is an instrument to predict experimental results. No matter how much we might dislike it, we have to accept it; there (...) is no way out. It was my refusal to give in that led me to become a philosopher of physics. And I was right in being persistent because I later discovered that, as Maudlin clearly explains, there is no reason to be pessimistic: all the quantum mysteries and paradoxes have a solution. Actually, more than one. To have Maudlin’s book at the time would have saved me a lot of time and pain. I am sure it will be a life-saver for many other rightfully puzzled undergraduate physics students wondering if the questions they ask are wrongheaded, as too many of their teachers claim: How can the Schrödinger cat really be dead and alive at the same time? Is reality created by an act of observation or a measurement? How is a measurement not a physical process like any other? Because these are not bad questions at all, and they have straightforward answers: the Schrödinger cat cannot be both alive and dead; reality is not created by observation; a measurement is just a type of interaction between two physical systems. However, the book is also not perfect (becoming, ironically, a superposition). While Maudlin defends his own position on how to make sense of quantum theory, his book is also potentially misleading about the state of the art in terms of the philosophical foundations of the theory. Maudlin omits to mention (or cite, or give reference to) the majority of the literature generated in the last two decades around the problems he discusses. Although this book may be intended as an introductory textbook to the field, I am disappointed that it skirts so much of the work of the past few decades on the foundations of quantum theory. To be fair, there is a habit in philosophy of physics at large of failing to sufficiently acknowledge other work, but this is why the failure to do much to rectify this trend in even a short introductory textbook like this one troubles me as much as it does. Indeed, this can mislead students who are new to the material, in the same way that I felt misled by my undergraduate physics instructors about the nature of quantum theory. This is also puzzling because, as I will discuss below, the lack of contextualization of his view within the actual literature makes Maudlin’s arguments weaker than they could have been. (shrink)

Basic motor competencies are a prerequisite for children to be physically active, participate in sports and thus develop a healthy, active lifestyle. The present study provides a broad screening of BMC and associations with age, sex, body mass index and extracurricular physical activity in 10 different European countries. The different country and regional contexts within Europe will offer a novel view on already established BMC associations. The cross-sectional study was conducted in 11 regions in 10 European countries in (...) 2018. The motor competence areas, object movement and self-movement, were assessed using the MOBAK-1-2 test instrument in 3758 first and second graders during Physical Education classes. Children were questioned about their extracurricular PA and age. Their body weight and height were measured in order to calculate BMI. Statistical analyses included variances and correlations. The results showed significant differences in BMC levels between countries whereas associations between BMC and correlates were similar. Boys performed significantly better in OM while girls performed better in SM. Age was consistently positively related to OM and SM with older children reaching higher levels of BMC than younger ones. While participation rates for extracurricular PA differed widely, participation in ball sports was correlated with OM and SM. Participation in individual sports showed a significant association with SM. In summary, BMC levels of children seem to depend on where they live and are strongly related to their participation in extracurricular PA. Therefore, education and health policies, in order to enhance motor competence development and PA participation, are recommended. Further research on country-specific Physical Education frameworks and their influence on BMC will provide more insights into structural factors and cultural characteristics of BMC development. On a school level, support tools and educational materials for teachers about BMC may enable children to achieve a basic level of motor competencies through Physical Education, contributing to lifelong participation in PA. (shrink)

This is a chapter from my book Perception (Routledge). I explain the physical state view of sensory experience (Papineau, McLaughlin, others). I criticize an argument against it based on the "transparency observation". Then I develop two alternative arguments against it. The first is a Leibniz's Law argument based on the essentially externally directed character of some experiences. The second concerns "brains in vats". Finally I consider a recent response due to David Papineau, which involves rejecting essential external directedness.

The COVID-19 crisis, and its ensuing periods of confinement, has generated high levels of social stress on a global scale. In Spain, citizens were isolated in their homes and were not able to interact physically with family members, friends or co-workers. Different resources were employed to face this new stressful and unexpected situation (fitness, reading, painting, meditation, mindfulness, dancing, listening to music, playing instruments, cooking, etc.). Humor was one of the most frequent and widely used strategies in an attempt (...) to keep perspective, deal with the seriousness of the situation and make the day-to-day more bearable. Humor is cultural: it varies from one country to the next and is part of the idiosyncrasies of a culture. It is deemed a particularly important feature of the Spanish personality. During the COVID-19 crisis, the main means or channels of communication were social networks. Throughout the confinement period, there was an excessive flow of humorous memes concerning Coronavirus and related shared experiences during the National State of Emergency decreed by the Spanish Government. The memes draw on irony, ingenuity and creativity to make a difficult and stressful experience more bearable. In this paper, a qualitative methodology based on ethnography research is used and ethnographic fieldwork is carried out on the memes disseminated through WhatsApp during the lockdown period experienced in Spain (14 March to 21 June 2020). The memes are considered to be an example of Netlore, digital contemporary folklore, and a theoretical framework on memes and humor is presented that discusses its different functions in order to channel grief, fear and suffering or to play down specific situations. A corpus of 644 memes that have flooded social networks are categorized and analyzed to witness how the Spanish have managed to bring out their humorous and creative side in difficult times even as they have criticized political decisions, let out their frustrations, described their new “normal” lives, interacted with others and anticipated the future. (shrink)

Human action has generally appeared to the sociologist as instrumental action, movement conceptualized and valued in terms of its utility, with the actor defined in terms of agency within rationalized social systems . Dance provides a way of seeing that conditions for human existence cannot be reduced to socio-economic relations and forms. Drawing on my ethnographic study of a dance improvisation group, I explore some of the ways in which innovative action resists the productive and textual relations that turn bodies (...) into objects of social control in the capitalist world-order, and creates relations that enable ‘free’ action and liberated subjectivities. Innovations disrupt the pre-existing frames of reference, physical and linguistic, that position the subject in the world of work, and establish an unlimited and undetermined time-space for experiencing ‘something new’. In this case the something new is an opportunity to create oneself anew through choices that are made moving ‘free’ from the constraints of practical activity. Within the intersubjective life-world established through innovative action a space is created for individuation and empowerment. Although these conditions for existence are episodically produced and contingent, they begin and end with the dancing, the relations are self-affirming rather than self-alienating. Dance improvisation experience provides a sociological context for presenting human activity as a contested category in sociological theory, and it raises some important questions about what it means to be human in the world. (shrink)

This paper argues that Jean-Paul Sartre’s discussion of violence from his Notebooks for an ethics constitutes an attempt to go beyond an instrumental view of violence. An “instrumental view of violence” essentially assumes that violent behavior is a form of pragmatic behavior whose distinguishing feature consists in the kind of means one employs for reaching one’s goals (violent behavior resorting to means that are harmful for others, whereas non-violent behavior does not). For his part, Sartre attempts to provide (...) a stronger demarcation between violent and pragmatic behaviors. First, violent behavior is, for Sartre, not necessarily characterized by the use of particular means, but by a particular manner of using means, one that involves a certain “forcing” or “straining” of the means. Second, I argue that, according to Sartre, in contrast with pragmatic behavior, violent behavior involves a modification of one’s attitude towards one’s goals. Three such modified attitudes with respect to one’s goals are detailed here, namely the non-productive attitude (the assumption that the goal is not to be produced or that it is not to be produced by means that are under our control), the counter-productive attitude (the exacerbation of one’s proximate goal at the expense of more distant goals) and the anti-productive attitude (the active refusal of one’s previously set goal). Moreover, I show that Sartre’s view that violence involves the “straining” of one’s means is undergirded by his idea that violent behavior presupposes the modification of one’s attitude with respect to one’s goals. (shrink)

It seems intuitively obvious that metameric matching of color samples entails a loss of information, for spectrophotometrically diverse materials appear the same. This intuition implicitly relies on a conception of the function of color vision and on a related conception of how color samples should be individuated. It assumes that the function of color vision is to distinguish among spectral energy distributions, and that color samples should be individuated by their physical properties. I challenge these assumptions by articulating a (...) different conception of the function of color vision, according to which color vision serves to partition object surfaces into discrimination classes. (shrink)

A form of metaphysical humanism in the field of philosophy of technology can be defined as the claim that besides technologies’ physical aspects, purely human attributes are sufficient to conceptualize technologies. Metaphysical nonhumanism, on the other hand, would be the claim that the meanings of the operative words in any acceptable conception of technologies refer to the states of affairs or events which are in a way or another shaped by technologies. In this paper, I focus on the conception (...) of technologies as problem-solving physical instruments in order to study the debate between the humanist and the nonhumanist ways of understanding technologies. I argue that this conception commits us to a hybrid understanding of technologies, one which is partly humanist and partly nonhumanist. (shrink)

Perfectionism is a multidimensional construct with both positive and negative aspects. Recently, the concept of appearance-oriented perfectionism has been introduced, which is associated with body image dissatisfaction and weight and shape control behaviors. The Physical Appearance Perfectionism Scale is a 12-item two-factor instrument developed to assess this new dimension of perfectionism. The aim of the study is to validate the Spanish version of PAPS among a representative sample of 850 male university students in Spain. Exploratory and confirmatory factorial structure, (...) internal consistency, convergent and concurrent validity, and associated predictor variables analyses have been carried out. Results showed that the Spanish version of the PAPS maintains the original factor structure with all items and proves to be a reliable instrument. Physical appearance-oriented perfectionism is associated with general perfectionism, higher body dissatisfaction, Eating Disorders and Muscle Dysmorphia symptomatology, and compulsive exercise, particularly in the Worry about Imperfection subscale. These variables also act as predictors of physical appearance perfectionism. The use of the PAPS-S and the analysis of its subscales is recommended in the context of body image-related pathologies such as Eating Disorders and Muscle Dysmorphia. (shrink)

The working situation prevailing in theoretical and experimental physics today is held to be inseparable from the interpretation of quantum theory, and constitutes an embodiment of its implicit difficulties. Such an understanding of the present situation in fundamental physics provides a quite different basis for ideas than the formulation of alternative courses of action (experiments) or alternative forms of knowledge (theories), which proceeds from the belief in a full separation of theory from experiment in this field. It is argued that (...) this underlying belief is not well founded. One must therefore consider the technical details of the field together with its foundations, and thus especially the situation produced by fundamental physics, including, in particular, the growth of high-energy technology, which exerts a determining influence on the further course of the subject. (shrink)

The paper analyses today partly forgotten Max Horkheimer’s conception of instrumental reason which presents this reason differently from the definition widespread today (claiming that it consists in adopting suitable means to set ends). Horkheimer relates instrumental reason to subjective one, seeing the former as a degenerate form of the latter. His theory is far more philosophical than the dominating today conceptions which do not consider the problem of instrumental reason philosophical any longer and instead move it step by step to (...) the domain of a nonphilosophical decision theory. The paper analyses in particular Horkheimer’s beliefs claiming that 1) it is science which founds instrumental reason, and therefore 2) it is science which is the main source of oppressiveness and degradation of the contemporary civilization. It is shown among other things that Horkheimer misunderstands some properties of science and its operations and this leads to his incorrect presentation of the role of instrumental reason. (shrink)

Much of the history of physics at the beginning of the twentieth century has been written with a sharp focus on a few key figures and a handful of notable events. Einstein’s Generation offers a distinctive new approach to the origins of modern physics by exploring both the material culture that stimulated relativity and the reaction of Einstein’s colleagues to his pioneering work. Richard Staley weaves together the diverse strands of experimental and theoretical physics, commercial instrument making, and the sociology (...) of physics around 1900 to present a complete view of the collective efforts of a group whose work helped set the stage for Einstein’s revolutionary theories and the transition from classical to modern physics that followed. Collecting papers, talks, catalogues, conferences, and correspondence, Staley juxtaposes scientists’ views of relativity at the time to modern understandings of its history. Ultimately, Einstein’s Generation tells the story of a group of individuals whose work engendered some of the most significant advances of the twentieth century—and challenges our celebration of Einstein’s era above all others. (shrink)

What is a computer? What distinguishes computers from other artificial or natural systems with alleged computational capacities? What does use of a physical system for computation entail, and what distinguishes such use from otherwise identical transformation of that same system when it is not so used? This paper addresses such questions through a theory of information processing artifacts, the class of technical artifacts with physical capacities that enable agents to use them as means to their computational ends. Function (...) ascription, use plan requirements, malfunction, and efficacy of IPAs are all addressed in this theory, with emphasis on artifacts that can be used—reliably or otherwise—for digital computation. By explicitly distinguishing physically grounded computational capacities from user-ascribed computational functions, and by recognizing the distinct roles of each for the implementation of computations in artifacts, this theory clearly distinguishes the use of physical systems for computation from the transformations of physical system states that enable such use. As such, it provides a rigorous basis for distinguishing “computers” from other artificial and natural systems—a distinction whose nature and legitimacy faces ever-evolving challenges from multiple disciplines. This theory, and the associated “instrumental” view of computation in artifacts, naturally accommodates the openminded but scrupulous consideration of radically unconventional physical systems as potential substrates for future computers. (shrink)

This is the basis of the first part of the book.