This Element introduces major issues in the epistemology of experimental physics through discussion of canonical physics experiments and some that have not yet received much philosophical attention. The primary challenge is to make sense of how physicists justify crucial decisions made in the course of empirical research. Judging a result as epistemically significant or as calling for further technical scrutiny of the equipment is one important context of such decisions. Judging whether the instrument has been calibrated, (...) and which data should be included in the analysis are others. To what extent is it possible to offer philosophical analysis, systematization, and prescriptions regarding such decisions? To what extent can there be explicit epistemic justification for them? The primary aim of this Element is to show how a nuanced understanding of science in practice informs an epistemology of experimental physics that avoids strong social constructivism. (shrink)

From the very beginning it was realised that quantum physics involves radically new interpretative and epistemological consequences. While hitherto there has been no satisfactory philosophical analysis of these consequences, recent years have witnessed the accomplishment of many experiments to test the foundations of quantum physics, opening up vistas to a completely novel technology: quantum technology. The contributions in the present volume review the interpretative situation, analyze recent fundamental experiments, and discuss the implications of possible future technological applications. Readership: (...) Analytic philosophers (logical empiricists), scientists (especially physicists), historians of logic, mathematics and physics, philosophers of science, and advanced students and researchers in these fields. Can be used for seminars on theoretical and experimental physics and philosophy of science, and as supplementary reading at advanced undergraduate and graduate levels. (shrink)

This paper is concerned with the problem of experimental error. The prevalent view that experimental errors can be dismissed as a tiresome but trivial blemish on the method of experimentation is criticized. It is stressed that the occurrence of errors in experiments constitutes a permanent feature of the attempt to test theories in the physical world, and this feature deserves proper attention. It is suggested that a classification of types of experimental error may be useful as a (...) heuristic device in studying the nature of these errors. However, the standard classification of systematic and random errors is mathematically based does not focus on the causes of the errors, their origins, or the contexts in which they arise. A new typology of experimental errors is therefore proposed whose criterion is epistemological. This typology reflects the various stages that can be discerned in the execution of an experiment, each stage constituting a category of a certain type of experimental error. The proposed classification consists of four categories which are illustrated by historical cases. (shrink)

Several major breakthroughs in the history of physics have been prompted not by new empirical data but by thought experiments. James Robert Brown and John Norton have developed accounts of how thought experiments can yield such advances. Brown argues that knowledge gained via thought experiments demands a Platonic explanation; thought experiments for Brown are a window into the Platonic realm of the laws of nature. Norton argues that thought experiments are just cleverly disguised inductive or deductive arguments, so no (...) new account of their epistemology is needed. In this paper, I argue that although we do not need to invoke any Platonic insight to explain thought experimentation, Norton’s eliminativist account fails to capture the unique epistemological importance of thought experiments qua thought experiments. I then present my own account, according to which thought experiments are a particular type of inductive inference that is uniquely suited to generate new breakthroughs. (shrink)

Contrary to the assumptions of empiricist philosophies of science, the theory-laden character of data will not imply the inherent failure (subjectivity, circularity, or rationalization) of instruments to expose nature's secrets. The success of instruments is credited to scientists' capacity to create artificial technological analogs to familiar physical systems. The design of absorption spectrometers illustrates the point: Progress in designing many modern instruments is generated by analogically projecting theoretical insights from known physical systems to unknown terrain. An experimental realism is (...) defended. (shrink)

The modern understanding of radiation got its start in 1895 with X-rays discovered by Wilhelm Röntgen, followed in 1896 by Henri Becquerel’s discovery of radioactivity. The development of the study of radiation opened a vast field of research concerning various disciplines: chemistry, physics, biology, geology, sociology, ethics, etc. Additionally, new branches of knowledge were created, such as atomic and nuclear physics that enabled an in-depth knowledge of the matter. Moreover, during the historical evolution of this body of knowledge (...) a wide variety of new technologies was emerging. This article seeks to analyze the characteristics of experimental research in radioactivity and microphysics, in particular the relationship experience-theory. It will also be emphasized that for more than two decades, since the discovery of radioactivity, experiments took place without the theory being able to follow experimental dynamics. Some aspects identified as structural features of scientific research in the area of radiation and matter will be addressed through historical examples. The inventiveness of experiments in parallel with the emergence of quantum mechanics, the formation of teams and their relationship with technology developed from the experiments, as well as the evolution of microphysics in the sense of “Big Science” will be the main structural characteristics here focused. The case study of research in radioactivity in Portugal that assumes a certain importance and has structural characteristics similar to those of Europe will be presented. (shrink)

It seems possible to know that a mathematical claim is necessarily true by inspecting a diagrammatic proof. Yet how does this work, given that human perception seems to just (as Hume assumed) ‘show us particular objects in front of us’? I draw on Peirce’s account of perception to answer this question. Peirce considered mathematics as experimental a science as physics. Drawing on an example, I highlight the existence of a primitive constraint or blocking function in our thinking which (...) we might call ‘the hardness of the mathematical must’. (shrink)

Experimental natural philosophy was a mid-seventeenth-century development in which physical enquiry proceeded by connecting phenomena in an experimentally guided fashion, as opposed to attempting to account for them in terms of some underlying micro-corpuscular structure. The approach proved fruitful in two areas: Boyle’s experiments on the air pump and Newton’s experiments on the prism. This chapter argues that Lockean empiricism, which was subsequently taken to embody the principles behind Newtonianism, was an outcome of these developments and that it was (...) worked into an epistemological doctrine only when Locke encountered Malebranche’s vindication of the sole legitimacy of micro-corpuscularian explanation. The chapter reveals a form of empiricism—empiricism as a successor to, and refinement of, seventeenth-century experimental natural philosophy—which is intimately tied up with natural-philosophical practice, and is quite distinct from the speculative epistemology to which it is reduced in the rationalism and empiricism debates. (shrink)

Academic careers in French science during the mid-nineteenth century were made within the Université de France, an integrated state system of secondary and higher education controlled by a centralized Parisian educational administration. Among the most respected members of thecorps universitairewere Charles d'Almeida and Pierre Bertin, two historically obscurephysicienswhose significance derives from their substantial contributions to the social organization, teaching and communication of French experimental physics. This two-part comparative biography uses their entwined careers to make a case for the (...) emergence of a discipline of French experimental physics from the corps during the tumultuous politico-cultural transition from the Second Empire to the Third Republic. Of fundamental importance are disciplinary regimes of teaching and inspection within the corps, the foundation of the Société française de physique and theJournal de physique, and the diversification of the traditional pedagogical role of the Ecole normale supérieure, which, from around 1860, began to offer a career pathway for aspiring scientific researchers. Having established in this paper the socio-institutional mechanisms for the stabilization of a distinct field, in part two I characterize the epistemological–methodological aspects of French experimental physics. (shrink)

The aim of this paper is to show how thought experiments help us learn about laws. After providing examples of this kind of nomic illumination in the first section, I canvass explanations of our modal knowledge and opt for an evolutionary account. The basic application is that the laws of nature have led us to develop rough and ready intuitions of physical possibility which are then exploited by thought experimenters to reveal some of the very laws responsible for those intuitions. (...) The good news is that natural selection ensures a degree of reliability for the intuitions. The bad news is that the evolutionary account seems to limit the range of reliable thought experiment to highly practical and concrete contexts. In the fifth section, I provide reasons for thinking that we are not as slavishly limited as a pessimistic construal of natural selection suggests. Nevertheless, I promote the idea that biology is a promising source of predictions and diagnoses of thought experiment failures. (shrink)

The aim of this paper is to show how thought experiments help us learn about laws. After providing examples of this kind of nomic illumination in the first section, I canvass explanations of our modal knowledge and opt for an evolutionary account. The basic application is that the laws of nature have led us to develop rough and ready intuitions of physical possibility which are then exploited by thought experimenters to reveal some of the very laws responsible for those intuitions. (...) The good news is that natural selection ensures a degree of reliability for the intuitions. The bad news is that the evolutionary account seems to limit the range of reliable thought experiment to highly practical and concrete contexts. In the fifth section, I provide reasons for thinking that we are not as slavishly limited as a pessimistic construal of natural selection suggests. Nevertheless, I promote the idea that biology is a promising source of predictions and diagnoses of thought experiment failures. (shrink)

The question of when to stop an unsuccessful experiment can be difficult to answer from an individual perspective. To help to guide these decisions, we turn to the social epistemology of science and investigate knowledge inquisition within a group. We focused on the expensive and lengthy experiments in high energy physics, which were suitable for citation-based analysis because of the relatively quick and reliable consensus about the importance of results in the field. In particular, we tested whether the (...) time spent on a scientific project correlates with the project output. Our results are based on data from the high energy physics laboratory Fermilab. They point out that there is an epistemic saturation point in experimenting, after which the likelihood of obtaining major results drops. With time the number of less significant publications does increase, but highly cited ones do not get published. Since many projects continue to run after the epistemic saturation point, it becomes clearer that decisions made about continuing them are not always rational. (shrink)

Bridges Between Virtue Epistemology and Philosophy of Science 1 Abrol Fairweather Part I Epistemic Virtue, Cognitive Science and Situationism The Function of Perception 13 Peter J Graham Metacognition and Intellectual Virtue 33 Christopher Lepock Daring to Believe: Metacognition, Epistemic Agency and Reflective Knowledge 49 Fernando Broncano Success, Minimal Agency and Epistemic Virtue 67 Carlos Montemayor Towards a Eudaimonistic Virtue Epistemology 83 Berit Brogaard Expanding the Situationist Challenge to Reliabilism About Inference 103 Mark Alfano Inferential Abilities and Common Epistemic (...) Goods 123 Abrol Fairweather and Carlos Montemayor Part II Epistemic Virtue and Formal Epistemology Curiosity, Belief and Acquaintance 143 Ilhan Inan Epistemic Values and Disinformation 159 Don Fallis Defeasibility Without Inductivism 181 Juan Comesaña Part III Virtues of Theories and Virtues of Theorists Acting to Know: A Virtue of Experimentation 195 Adam Morton Is There a Place for Epistemic Virtues in Theory Choice? 207 Milena Ivanova Bridging a Fault Line: On Underdetermination and the Ampliative Adequacy of Competing Theories 227 Guy Axtell Epistemic Virtues and the Success of Science 247 D Tulodziecki Experimental Virtue: Perceptual Responsiveness and the Praxis of Scientific Observation 269 Shannon Vallor A Matter of Phronesis: Experiment and Virtue in Physics, A Case Study 291 Marilena Di Bucchianico Part IV Understanding, Explanation and Epistemic Virtue Knowledge and Understanding 315 Duncan Pritchard Understanding as Knowledge of Causes 329 Stephen R Grimm Knowledge, Understanding and Virtue 347 Christoph Kelp. (shrink)

In discussions about the Scientific Revolution, a key expression is “modern science”. Its traditional understanding – mathematization and experimentation – is too weak: Euclid’s geometry and Archimedes’ physics were both perfectly mathematical and were based on objective experience. And it is too strong: in natural sciences beyond physics, math is quite limited. Joseph Needham in his Grand Question actually focused on modern physics originating with Galileo. To make this question really historical, it is narrowed down to (...) class='Hi'>physics and expanded in cultural time and space: Which feature of modern physics, absent in Greco-Roman and Medieval sciences, prevented the next major advance after Archimedes, and prevented non-Europeans to join modern science for centuries after Galileo and up to the 20th century? In modern physics, besides the tools of mathematics and experiment, no less important is the third tool, described by Einstein as "the boldest speculation [to] bridge the gaps between the empirical data." This tool implies belief in the hidden fundamental laws of the universe and the right to invent fundamental concepts that are not directly observable, but can be tested experimentally along with the theory based on them. Such a belief, or the postulate of modern science, is the key distinction of modern physics. Among the great modern physicists there were eight theorists who successfully invented new fundamental concepts. And each of these inventions led to breakthrough advances of modern physics. (shrink)

In this article I deal with time as a notion of epistemological content associated though with the notion of a subjective consciousness co-constitutive of physical reality. In this phenomenologically grounded approach I attempt to establish a ‘metaphysical’ aspect of time, within a strictly pistemological context, in the sense of an underlying absolute subjectivity which is non-objectifiable within objective temporality and thus non-susceptible of any ontological designation. My arguments stem, on the one hand, from a version of quantum-mechanical theory in view (...) of its formal treatment of two different aspects of time within a quantum context. The discrete, partial-ordering properties and the dynamical-parameter properties reflected in the wave equations of motion. On the other hand, to strengthen my arguments for a transcendental factor of temporality, I attempt an interpretation of some relevant conclusions in the work of J. Eccles and of certain results of experimental research of S. Deahaene et al. and others. (shrink)

: Our paper discusses the epistemic attitudes of particle physicists on the discovery of the Higgs boson at the Large Hadron Collider. It is based on questionnaires and interviews made shortly before and shortly after the discovery in 2012. We show, to begin with, that the discovery of a Standard Model Higgs boson was less expected than is sometimes assumed. Once the new particle was shown to have properties consistent with SM expectations – albeit with significant experimental uncertainties –, (...) there was a broad agreement that ‘a’ Higgs boson had been found. Physicists adopted a two-pronged strategy. On the one hand, they treated the particle as a SM Higgs boson and tried to establish its properties with higher precision; on the other hand, they searched for any hints of physics beyond the SM. This motivates our first philosophical thesis: the Higgs discovery, being of fundamental importance and establishing a new kind of particle, represented a crucial experiment if one interprets this notion in an appropriate sense. By embedding the LHC into the tradition of previous precision experiments and the experimental strategies thus established, underdetermination and confirmational holism are kept at bay. Second, our case study suggests that criteria of theory preference should be understood as epistemic and pragmatic values that have to be weighed in factual research practice. The Higgs discovery led to a shift from pragmatic to epistemic values as regards the mechanisms of electroweak symmetry breaking. Complex criteria, such as naturalness, combine epistemic and pragmatic different values, but are coherently applied by the community. (shrink)

Any experimental field consists of preparing special conditions for examining interesting objects for research. So naturally, the particular ways in which scientists prepare their objects determine the kind and the content of knowledge produced. This book provides a framework for the analysis of experimental practices - the Social Epistemology of Experiment - that incorporates both the ‘material’ and the ‘social’ dimensions of knowledge production. The Social Epistemology of Experiment is applied to experimental economics and in (...) so doing, it introduces the epistemic role of the participation of human subjects in experiments and the causal efficacy of institutions in constraining and enabling human behaviour. It also develops the role of the social and socially established practices in overcoming the methodological difficulties associated with experimenting with humans subjects in the social sciences as well as the effect of scientists’ interventions in the laboratory worlds. This book provides an historical and contextualized account of the emergence of experimental economics, the methodological discussions that have informed and constituted it, its main research programmes, and stylized facts. The analysis of its three main research programmes – market experiments, game theory experiments and individual decision-making experiments – shows how economics experiments are particularly tailored to produce knowledge about market institutions and individual behaviour in contexts where there might be conflicts of individual and social goals, and also about the processes of individual decision-making. (shrink)

Christian Wolff, long regarded as a champion of dogmatic rationalism, was in fact deeply involved in empirical sciences such as physics, astronomy, meteorology, and agronomy. He also devoted a significant part of both his research and teaching to the life sciences and was especially eager to establish the theoretical foundations of medical practice. Challenging the scholarly cliché of Wolff ’s methodical apriorism, recent research has highlighted an empirical, a posteriori, or even experimental component of Wolffian science. This paper (...) aims to provide a different insight into.. (shrink)

If pragmatism, hitherto, has been content with elaborating theories of meaning and of truth, but has neglected epistemology, there are good reasons for that neglect. For one thing, much of the accepted vocabulary of epistemological discussion begs the questions under discussion. Again, much epistemology is simply an oblique metaphysics, and not an empirical investigation of knowledge, and hence throws no light on knowing as we practice it. But another reason for this neglect lies in the very simplicity of (...) an experimental theory of knowing. Its charms are not enhanced by undulating draperies of dialectic,' nor warded by the numerological incantations of a symbolic logic, nor made elusive by recondite reference to relativity physics. Nevertheless, it is to the exposition of this elementary doctrine that I mean now to proceed. And I shall do so simply, and with seeming dogmatism, by taking the categories of field, focus, and perspective, and working them for all they are worth in an experimental epistemology... (shrink)

This provocative and critical work addresses the question of why scientific realists and positivists consider experimental physics to be a natural and empirical science. Taking insights from contemporary science studies, continental philosophy, and the history of physics, this book describes and analyzes the metaphysical presuppositions that underwrite the technological use of experimental apparatus and instruments to explore, model, and understand nature.

My aim in this paper is to propose a way to study the role of perspectives in both the production and justification of experimental knowledge claims. My starting point for this will be Anjan Chakravartty’s claim that Ronald Giere’s perspectival account of the role of instruments in the production of such claims entails relativism in the form of irreducibly incompatible truths. This led Michela Massimi to argue that perspectivism, insofar as it wants to form a realist position, is only (...) concerned with the justification of such claims: whether they are produced reliably is, on her view, a perspective-independent fact of the matter. Following a suggestion by Giere on how scientists handle incompatible experimental results, I will then argue that Massimi’s perspectivism can be extended to also cover the production of such claims, without falling into relativism. I will elaborate this suggestion by means of Uljana Feest’s work on how scientists handle incompatible experimental results. I will argue that, if we reconceptualize perspectives as embodied and situated ways of going about in experimentation that can be made explicit through interpretation, we can obtain a fruitful understanding of the role of perspectives in both the production and justification of experimental knowledge. While this role is primarily exploratory, it can still allow for a substantial form of realism. (shrink)

In 1912, Henri Poincaré published an argument which apparently shows that the hypothesis of quanta is both necessary and sufficient for the truth of Planck''s experimentally corroborated law describing the spectral distribution of radiant energy in a black body. In a recent paper, John Norton has reaffirmed the authority of Poincarés argument, setting it up as a paradigm case in which empirical data can be used to definitively rule out theoretical competitors to a given theoretical hypothesis. My goal is to (...) dispute Norton ''s claim that there is no theoretical underdetermination problem arising between classical physics and early quantum theory. The strategy I use in defending my view is to adopt a suggestion made by Jarrett Leplin and Larry Laudan on how to assess the relative merits of competing theoretical alternatives, where each alternative has an equal capacity to save the phenomena. In the course of the paper, I distinguish between two branches of classical physics: classical mechanics and classical electromagnetism. The former is claimed by Norton and Poincaré to be determinately ruled out by the black body evidence; and it is the former that I argue is compatible with this evidence. (shrink)

Our encounters with the physical world are filled with miraculous puzzles-wind appears from somewhere, heavy objects float on oceans, yet smaller objects go to the bottom of our water-filled buckets. As adults, instead of confronting a whole world, we are reduced to driving from one parking garage to another. The Child's Conception of Physical Causality, part of the very beginning of the ground-breaking work of the Swiss naturalist Jean Piaget, is filled with creative experimental ideas for probing the most (...) sophisticated ways of thinking in children. The strength of Piaget's research is evident in this collection of empirical data, systematically organized by tasks that illuminate how things work. Piaget's data are remarkably rich. In his new introduction, Jaan Valsiner observes that Piaget had no grand theoretical aims, yet the book's simple power cannot be ignored. Piaget's great contribution to developmental psychology was his "clinical method"-a tactic that integrated relevant aspects of naturalistic experiment, interview, and observation. Through this systematic inquiry, we gain insight into children's thinking. Reading Piaget will encourage the contemporary reader to think about the unity of psychological phenomena and their theoretical underpinnings. His wealth of creative experimental ideas probes into the most sophisticated ways of thinking in children. Technologies change, yet the creative curiosity of children remains basically unhindered by the consumer society. Piaget's data preserve the reality of the original phenomena. As such, this work will provide a wealth of information for developmental psychologists and those involved in the field of experimental science. Jean Piaget is known for investigations of thought processes. He was professor at Geneva University and director of the International Center for Epistemology. He is the author of The Language and Thought of the Child, Judgment and Reasoning in the Child, The Origin of Intelligence in Children, and The Early Growth of Logic in the Child. Jaan Valsiner is professor of psychology at Clark University, and a recognized authority on the life and work of Piaget. (shrink)

This is a prepublication version of the final chapter from the Blackwell Companion to Consciousness. In it I re-examine the basic conditions required for a study of conscious experiences in the light of progress made in recent years in the field of consciousness studies. I argue that neither dualist nor reductionist assumptions about subjectivity versus objectivity and the privacy of experience versus the public nature of scientific observations allow an adequate understanding of how studies of consciousness actually proceed. The chapter (...) examines the sense in which the experimenter is also a subject, the sense in which all experienced phenomena are private and subjective, the different senses in which a phenomenon can nevertheless be public and observations of it objective, and the conditions for intra-subjective and intersubjective repeatability. The chapter goes on to re-examine the empirical method and how methods used in psychology differ from those used in physics. I argue that a reflexive understanding of these relationships supports a form of “critical phenomenology” that fits consciousness studies smoothly into science. (shrink)

Among several possibilities for what reality could be like in view of the empirical facts of quantum mechanics, one is provided by theories of spontaneous wave function collapse, the best known of which is the Ghirardi–Rimini–Weber theory. We show mathematically that in GRW theory there are limitations to knowledge, that is, inhabitants of a GRW universe cannot find out all the facts true of their universe. As a specific example, they cannot accurately measure the number of collapses that a given (...) physical system undergoes during a given time interval; in fact, they cannot reliably measure whether one or zero collapses occur. Put differently, in a GRW universe certain meaningful, factual questions are empirically undecidable. We discuss several types of limitations to knowledge and compare them with those in other versions of quantum mechanics, such as Bohmian mechanics. Most of our results also apply to observer-induced collapses as in orthodox quantum mechanics. 1 Introduction1.1 Known examples of limitations to knowledge1.2 Remarks2 Brief Review of GRW Theories2.1 The GRW process2.2 GRWm2.3 GRWf3 First Examples of Limitations to Knowledge in GRW Theories4 Measurements of Flashes in GRWf, or of Collapses in GRWm4.1 An example in which ψ is known4.2 Other choices of ψ4.3 Experiments beginning before t24.4 If ψ is random4.5 Optimal way of distinguishing two density matrices4.6 If ψ is unknown5 Measurements of m in GRWmAppendix. (shrink)

Although various statistical measures may have other valid uses, the single purpose served by statistical significance testing in the epistemology of experimental science is as a peremptory rebuttal of one potential alternative interpretation of the data.

The present work is focussed on the completeness of physics, or what is here called the Completeness Thesis: the claim that the domain of the physical is causally closed. Two major questions are tackled: How best is the Completeness Thesis to be formulated? What can be said in defence of the Completeness Thesis? My principal conclusions are that the Completeness Thesis can be coherently formulated, and that the evidence in favour if it significantly outweighs that against it. In opposition (...) to those who argue that formulation is impossible because no account of what is to count as physical can be provided, I argue that as long as the purpose of the argument in which the account is to be used are borne in mind there are no significant difficulties. The account of the physical which I develop holds as physical whatever is needed to fix the likelihood of pre-theoretically given physical effects, and hypothesises in addition that no chemical, biological or psychological factors will be needed in this way. The thus formulated Completeness Thesis is coherent, and has significant empirical content. In opposition to those who defend the doctrine of emergentism by means of philosophical arguments I contend that those arguments are flawed, setting up misleading dichotomies between needlessly attenuated alternatives and assuming the truth of what is to be proved. Against those who defend emergentism by appeal to the evidence, I argue that the history of science since the nineteenth century shows clearly that the empirical credentials of the view that the world is causally closed at the level of a small number of purely physical forces and types of energy is stronger than ever, and the credentials of emergentism correspondingly weaker. In opposition to those who argue that difficulties with reductionism point to the implausibility of the Completeness Thesis I argue that completeness in no way entails the kinds of reductionism which give rise to the difficulties in question. I argue further that the truth of the Completeness Thesis is in fact compatible with a great deal of taxonomic disorder and the impossibility of any general reduction of non-fundamental descriptions to fundamental ones. In opposition to those who argue that the epistemological credentials of fundamental physical laws are poor, and that those laws should in fact be seen as false, I contend that truth preserving accounts of fundamental laws can be developed. Developing such an account, I test it by considering cases of the composition of forces and causes, where what takes place is different to what is predicted by reference to any single law, and argue that viewing laws as tendencies allows their truth to be preserved, and sense to be made of both the experimental discovery of laws, and the fact that composition enables accurate prediction in at least some cases. (shrink)

The article analyzes the problem of physical theory nature and its criteria in the context of several concepts of modern physics. Such physical concepts allow multiple possible universes (the last usually happens to be a random consequence of the theory). Since the study requires several universe models, which basic principles (physical laws) can vary, the two theories have become the objects of analysis: the first, which includes the concept of eternal inflation, the second – the string cosmology (the string (...) landscape). Both theories allow for a large variation of physical laws (no matter, whether these are fundamentally different physical laws or different versions of the same basic principles). The amount of dark energy (cosmological constant) has been selected as a physical law parameter, changing its value in possible universes.The analysis of the physical theories, which allow a multiplicity of universes, has shown that the standard requirements for the theory, which connect its veracity with the criteria of observability and the need for validation of our universe basic principles, are not entirely consistent. Theoretical physics is moving towards the formulization of models that become a real (in some cases, apparently irresistible) challenge for experimental verification. The article proves that such verification probably can not be required in several physical theories, since, in particular, the postulation of this kind of connection between theory and reality is no more than a manifestation of anthropocentrism. However, the theory can trace more general grounds that lie beyond the scope of human observation. (shrink)

Transcendental epistemology of physics Content Type Journal Article Pages 1-3 DOI 10.1007/s11016-010-9507-z Authors Andrés Rivadulla, Department of Logic and Philosophy of Science, Complutense University, 28040 Madrid, Spain Journal Metascience Online ISSN 1467-9981 Print ISSN 0815-0796.

While Kant introduces his critical philosophy in continuity with the experimental tradition begun by Francis Bacon, it is widely accepted that his Copernican revolution places experimental physics outside the bounds of science. Yet scholars have recently contested this view. They argue that in Critique of the Power of Judgment Kant’s engagement with the growing influence of vitalism in the 1780s leads to an account of nature’s formative power that returns experimental physics within scientific parameters. Several (...) critics are sceptical of this revised reading. They argue that Kant’s third Critique serves precisely to deflate the epistemological status of experimental physics, thereby protecting science from the threat of vitalism. In this paper I examine Kant’s account of science in the context of the experimental tradition of philosophy, particularly in relation to the generation dilemma of the eighteenth century. I argue that Kant does not deflate the epistemological status of experimental physics but rather introduces systematicity to the experimental tradition. By identifying the reflective use of reason to organize laws of experience into a systematic whole, Kant aims to ground experimental inquiry on the secure course of a science, opening a conception of science as a research programme. (shrink)

ABSTRACTJacques Rohault is often considered to be one of the most meticulous followers of Descartes. Despite this, Rohault’s natural philosophy lacks much of the metaphysical bulwark that typifies Cartesian treatises of the seventeenth century. Instead, Rohault’s work, as well as his popular weekly meetings, strongly emphasized rigorous observation and experimentation. Traditionally, this emphasis on experiment over metaphysics is seen as a pragmatic omission to avoid the perils associated with censorship and Cartesian metaphysics. However, I find that the lack of explicit (...) metaphysics has real consequences that play out in the role Rohault assigns to experimentation. To show this, I highlight several areas where he adopts a broad experimental methodology even though Descartes explicitly rejects the relevancy of experiment on metaphysical topics. I place special emphasis Rohault’s extensive experiment on the void. In short, Rohault’s experimentation was designed to prove, through experimental mea... (shrink)

This is a work in the epistemology of functional neuroimaging (fNI) and it applies the error-statistical (ES) philosophy to inferential problems in fNI to formulate and address these problems. This gives us a clear, accurate, and more complete understanding of what we can learn from fNI and how we can learn it. I review the works in the epistemology of fNI which I group into two categories; the first category consists of discussions of the theoretical significance of fNI (...) findings and the second category discusses methodological difficulties of fNI. Both types of works have shortcomings; the first category has been too theory-centered in its approach and the second category has implicitly or explicitly adopted the assumption that methodological difficulties of fNI cannot be satisfactorily addressed. In this dissertation, I address these shortcomings and show how and what kind of experimental knowledge fNI can reliably produce which would be theoretically significant. I take fMRI as a representative fNI procedure and discuss the history of its development. Two independent trajectories of research in physics and physiology eventually converge to give rise to fMRI. Thus, fMRI findings are laden in the theories of physics and physiology and I propose how this creates a kind of useful theory-ladenness which allows for the representation of and intervention in the constructs of cognitive neuroscience. Duhemian challenges and problems of underdetermination are often raised to argue that fNI is of little, if any, epistemic value for psychology. I show how the ES notions of severe tests and error probabilities can be applied in epistemological analyses of fMRI. The result is that hemodynamic hypotheses can be severely tested in fMRI experiments and I demonstrate how these hypotheses are theoretically significant and fuel the growth of experimental knowledge in cognitive neuroscience. Throughout this dissertation, I put the emphasis on the experimental knowledge we obtain from fNI and argue that this is the fruitful approach that enables us to see how fNI can contribute to psychology. In doing so, I offer an error-statistical epistemology of fNI, which hopefully will be a significant contribution to the philosophy of psychology. (shrink)

In this chapter I re‐examine the basic conditions required for a study of conscious experiences in the light of progress made in recent years in the field of consciousness studies. I argue that neither dualist nor reductionist assumptions about subjectivity versus objectivity and the privacy of experience versus the public nature of scientific observations allow an adequate understanding of how studies of consciousness actually proceed. The chapter examines the sense in which the experimenter is also a subject, the sense in (...) which all experienced phenomena are private and subjective, the different senses in which a phenomenon can nevertheless be public and observations of it objective, and the conditions for intra‐subjective and intersubjective repeatability. The chapter goes on to re‐examine the empirical method and how methods used in psychology differ from those used in physics. I argue that a reflexive understanding of these relationships supports a form of “critical phenomenology” that fits consciousness studies smoothly into science. (shrink)

Predictive policing has become a new panacea for crime prevention. However, we still know too little about the performance of computational methods in the context of predictive policing. The paper provides a detailed analysis of existing approaches to algorithmic crime forecasting. First, it is explained how predictive policing makes use of predictive models to generate crime forecasts. Afterwards, three epistemologies of predictive policing are distinguished: mathematical social science, social physics and machine learning. Finally, it is shown that these epistemologies (...) have significant implications for the constitution of predictive knowledge in terms of its genesis, scope, intelligibility and accessibility. It is the different ways future crimes are rendered knowledgeable in order to act upon them that reaffirm or reconfigure the status of criminological knowledge within the criminal justice system, direct the attention of law enforcement agencies to particular types of crimes and criminals and blank out others, satisfy the claim for the meaningfulness of predictions or break with it and allow professionals to understand the algorithmic systems they shall rely on or turn them into a black box. By distinguishing epistemologies and analysing their implications, this analysis provides insight into the techno-scientific foundations of predictive policing and enables us to critically engage with the socio-technical practices of algorithmic crime forecasting. (shrink)

The main goal of this paper is to argue against Karl Rogers's attacks on realism in physics. Rogers argues that electrons do not exist independently of the relevant socio-technological process, but I show that such an assumption would make our best scientific theories incomprehensible. While the paper supports Rogers's attempts to refute positivism, it demonstrates that his own position is positivistic, and it corrects his overemphasis on the roles of technology and the experimenter. Rogers assumes that the founders of (...) modern science were simply mechanists, but I show how they were actually Platonic realists. Contrary to Rogers, realist faith in the fundamental unifying power of the laws of physics is shown to be reasonable, and any denial of this belief would imply that science is impossible. (shrink)

The main goal of this paper is to argue against Karl Rogers's attacks on realism in physics. Rogers argues that electrons do not exist independently of the relevant socio-technological process, but I show that such an assumption would make our best scientific theories incomprehensible. While the paper supports Rogers's attempts to refute positivism, it demonstrates that his own position is positivistic, and it corrects his overemphasis on the roles of technology and the experimenter. Rogers assumes that the founders of (...) modern science were simply mechanists, but I show how they were actually Platonic realists. Contrary to Rogers, realist faith in the fundamental unifying power of the laws of physics is shown to be reasonable, and any denial of this belief would imply that science is impossible. (shrink)

The aim of this research is focused on analyzing the alteration of the psychophysiological and cognitive response to an objective computerized stress test, when the behavioral response is controlled. The sample used was sports science students, with a mean age of 22.82 A quasi-experimental design was used in which the response of each participant to the DT test was evaluated. The variable “number of hours of physical activity per week” and the variable “level of behavioral response to stress” were (...) controlled. Before and after this test, the following parameters were measured: activation and central fatigue, and perceived exertion. Significant differences were found in all of the measures indicated. The usefulness of this protocol and the measures used to analyze the stress response capacity of the study subjects are discussed. (shrink)

John Locke’ famous Essay is often regarded as a work in epistemology, determining the limits and scope of knowledge. By contrast, this chapter aims to revive the Enlightenment view of Locke as an experimental philosopher and natural historian who developed an experimental natural philosophy of human understanding. Through an analysis of Locke’s experimental ‘ethos’, and in particular his emphasis on autoptic experience, Hamou argues that Locke’s approach to natural philosophy in the Essay is both a subtle (...) critique of the optimism of some of the fellows of the early Royal Society and the key to explaining his own reluctance to pursue physical inquiries of the mind. (shrink)

Technoscientific research, a kind of scientific research conducted within the decontextualized approach (DA), uses advanced technology to produce instruments, experimental objects, and new objects and structures, that enable us to gain knowledge of states of affairs of novel domains, especially knowledge about new possibilities of what we can do and make, with the horizons of practical, industrial, medical or military innovation, and economic growth and competition, never far removed from view. The legitimacy of technoscientific innovations can be appraised only (...) in the course of considering fully what sorts of objects technoscientific objects are: objects that embody scientific knowledge confirmed within DA; physical/chemical/biological objects, realizations of possibilities discovered in research conducted within DA, brought to realization by means of technical/experimental/instrumental interventions; and components of social/ecological systems, objects that embody the values of technological progress and (most of them) values of capital and the market. What technoscientific objects are - their powers, tendencies, sources of their being, effects on human beings and social/economic systems, how they differ from non technoscientific objects - cannot be grasped from technoscientific inquiry alone; scientific inquiry that is not reducible to that conducted within DA is also needed. The knowledge that underlies and explains the efficacy of technoscientific objects is never sufficient to grasp what sorts of object they are and could become. Science cannot be reduced to technoscience. (shrink)

In this chapter I argue that the general category of 'iatromechanics' conceals different views about how mathematics and mathematical physics should be applied in medicine, and thereby about how physiology should be quantified and mathematized. Mechanism, quantification and mathematization are indeed different, albeit interrelated, notions, which overlap without ever coming to be identical, and all of which depend upon the overall epistemological debate over the method for finding truth in science. This chapter compares the epistemological thought of the Newtonians (...) Archibald Pitcairne (1652-1713), James Keill (1673-1719) and the rationalists Yvo Gaukes (ca. 1660-1738) and Friedrich Hoffman (1660-1742). It contends that, still in the early eighteenth-century, contrasting understandings and uses of quantification in medicine related to different conceptions of the epistemological status of mathematics and its connection with experience especially. The chapter then focuses on how the experimental quantitative approach introduced in physiology by Santorio Santorio (1561-1636) is understood in these different scenarios. I argue that contrasting understandings and uses of quantification in medicine correspond not only to different conceptions about the epistemological status of mathematics, but also of its conjunction with experience. (shrink)

This essay seeks to illuminate the changing nature of experimental physics in the 1860s and 1870s by analysing the creation of dust tubes and dust figures by the German experimentalist August Kundt, and by showing how Kundt and his associate Emil Warburg used the ‘Kundt tube’ to test the new kinetic theory of gases. In so doing, the essay seeks to show how Kundt came to revise the vision of experimental physics that he had learned from (...) his teacher Heinrich Gustav Magnus, a vision in which the experimentalist's goal was to establish ‘the facts’. Kundt, by contrast, came to envision experimental physics as being in the service of theory: to confirm or disconfirm theory, or to provide theorists with new phenomena to theorize about. Kundt's vision, it is argued, is emblematic of the changing nature of experimental physics and reflective of the rise of the new subdisciplines of theoretical and experimental physics. (shrink)

Recent work by Keyser in applied epistemology of experiment has focused on the iterative ‘production’ of knowledge: knowledge stabilizes within a given physical context and it is iteratively tested within that context to meet standards of reliability. This implies that in a given physical context (e.g., laboratory), the inferences, methods/techniques, and physical products form coherence relations with one another. We apply this epistemological stabilization account to the martial arts in order to argue that the context of stabilization dictates the (...) training methods, techniques, and even the philosophical concepts of a given martial arts system. We describe key elements of stabilization pertaining to rules, training methodology, warrior philosophy, and spectator/media tropes. The account of stabilization requires a case study that shows how a dynamic system is stabilized. We describe the stabilization of modern mixed martial arts by tracking it on a time scale, but also in different contexts (e.g., Pancrase, Pride, UFC). (shrink)