Recent work suggests that people predict how objects interact in a manner consistent with Newtonian physics, but with additional uncertainty. However, the sources of uncertainty have not been examined. In this study, we measure perceptual noise in initial conditions and stochasticity in the physical model used to make predictions. Participants predicted the trajectory of a moving object through occluded motion and bounces, and we compared their behavior to an ideal observer model. We found that human judgments cannot be (...) captured by simple heuristics and must incorporate noisy dynamics. Moreover, these judgments are biased consistently with a prior expectation on object destinations, suggesting that people use simple expectations about outcomes to compensate for uncertainty about their physical models. (shrink)

Huston Smith has argued that the universal source of wholeness, which he refers to as the primordial tradition, is essential to a meaningful life. Indeed embracing this tradition is, said Smith, an act of rejoining the human race. Our current forms of organized religion offer us ritualized expressions of this tradition, yet often fail to provide us with transpersonal growth; it is this transpersonal growth that reconnects us with the source of religion. This essay differentiates mainstream religion from a way (...) that we can begin to construct a physical theory of the primordial tradition–a necessary first step toward reclaiming the source of religion. (shrink)

Abstract How is meaning assigned to those terms in a theory which are remote from direct observational instantiation? Models and analogies play a role, but close examination of theories in high energy physics shows that the design of experimental apparatus also influences the interpretation of such terms. Certain apparatus favours certain kinds of effects, and this affects the way mathematical theories are interpreted. In particular track producing apparatus becomes involved with theories in which photonic terms are picked out in (...) the theory. A further conceptual constraint is thus introduced. It is argued that this situation favours the interpretation of dispositional properties as affordances rather than as simple dispositions. (shrink)

Sports, team games, and physical skill competitions appear to be a human universal and may have been prevalent throughout the hominin lineage. These activities are cognitively complex and can be associated with a distinctive and symbolic material culture. Yet, many of the artifacts used by foraging groups for sports, team games, and athletic competitions often have a low preservation probability.

Blurb & Contents Readings from Physics Today With over 300 photographs and illustrations, this volume is a valuable library reference, a useful supplementary text for a wide range of courses, and stimulating leisure reading for physicists and non- physicists alike.

Much research on cognitive development focuses either on early-emerging domain-specific knowledge or domain-general learning mechanisms. However, little research examines how these sources of knowledge interact. Previous research suggests that young infants can make inferences from samples to populations (Xu & Garcia, 2008) and 11- to 12.5-month-old infants can integrate psychological and physical knowledge in probabilistic reasoning (Teglas, Girotto, Gonzalez, & Bonatti, 2007; Xu & Denison, 2009). Here, we ask whether infants can integrate a physical constraint of immobility into a (...) statistical inference mechanism. Results from three experiments suggest that, first, infants were able to use domain-specific knowledge to override statistical information, reasoning that sometimes a physical constraint is more informative than probabilistic information. Second, we provide the first evidence that infants are capable of applying domain-specific knowledge in probabilistic reasoning by using a physical constraint to exclude one set of objects while computing probabilities over the remaining sets. (shrink)

This volume relates to natural philosophy apart from the study of living things. Topics covered include the principles of scientific inquiry, place, time, motion, the heavens, the sublunary world, meteorology and the study of materials.

Although computation and the science of physical systems would appear to be unrelated, there are a number of ways in which computational and physical concepts can be brought together in ways that illuminate both. This volume examines fundamental questions which connect scholars from both disciplines: is the universe a computer? Can a universal computing machine simulate every physical process? What is the source of the computational power of quantum computers? Are computational approaches to solving physical problems and paradoxes always fruitful? (...) Contributors from multiple perspectives reflecting the diversity of thought regarding these interconnections address many of the most important developments and debates within this exciting area of research. Both a reference to the state of the art and a valuable and accessible entry to interdisciplinary work, the volume will interest researchers and students working in physics, computer science, and philosophy of science and mathematics. (shrink)

Though Aristotle is universally acknowledged as having a mighty influence on the history of philosophy, large parts of his writings are often thought to be interesting to nobody except the historian. This includes those treatises known as the theoretical works (preeminently the Metaphysics, Physics, De Anima, and Posterior Analytics). However, the contributions in this book show that these old treatises are still profound resources for philosophical inquiry. Not only do they inform us about the origins of our ideas, but (...) equally they express insights that always stand in need of reinterpretation, and thus challenge our understanding. That challenge to understanding - and ultimately the desire for self-understanding, the desire to know what stands at the source of thinking itself - this was at the heart of the Greek ideal of philosophy, and some would say that this is still the task of the discipline. The essays included here cover a wide range of topics, including Aristotle's treatment of non-contradiction, the tension between his conceptions of knowledge and being, the complexity of the term 'potency,' and the relation between psychology and physics. (shrink)

This report reviews what quantum physics and information theory have to tell us about the age-old question, How come existence? No escape is evident from four conclusions: (1) The world cannot be a giant machine, ruled by any preestablished continuum physical law. (2) There is no such thing at the microscopic level as space or time or spacetime continuum. (3) The familiar probability function or functional, and wave equation or functional wave equation, of standard quantum theory provide mere continuum (...) idealizations and by reason of this circumstance conceal the information-theoretic source from which they derive. (4) No element in the description of physics shows itself as closer to primordial than the elementary quantum phenomenon, that is, the elementary device-intermediated act of posing a yes-no physical question and eliciting an answer or, in brief, the elementary act of observer-participancy. Otherwise stated, every physical quantity, every it, derives its ultimate significance from bits, binary yes-or-no indications, a conclusion which we epitomize in the phrase, it from bit. (shrink)

Mass ideology is unique to modern society and rooted in early modern philosophy. Traditionally, knowledge had been viewed as resting on metaphysics. Rejecting metaphysical truth evoked questions about the source of "truth." For nineteenth-century ideologists, "truth" comes either from dominating classes in a progressively determined history or from a post-Copernican freedom of the superior man to create it. In From Physics to Politics Robert C. Trundle, Jr. uncovers the relation of modern philosophy to political ideology. And in rooting truth (...) in human nature and Nature by modal reasoning, he resolves the problem of politicized truth. Our concepts of scientific truth, logic, and necessity are essentially connected. Modern philosophy restricts our understanding of necessity to the political dreams and aspirations of Enlightenment intellectuals. As a result, these intellectuals refuse to acknowledge as factual or meaningful whatever is not intelligible within the practical goals of establishing science as a system of enlightened ideas. The effect of these ideas is that in our time metaphysical principles, speculative truths, our understanding of science, and the nature of logic have become subordinated to ideological dreams. Fascism, Nazism, Marxism, political correctness, and moral relativism are not historical aberrations but essential consequences. Trundle's work is groundbreaking and daring, and his underlying thesis demonstrates why scientific truth demands a modal defense. The defense not only integrates science, ethics, and politics, but shows how "truth" may be ascribed to moral and scientific principles in contrast to a modern philosophical tradition. Since this tradition is the origin of political ideology, it has led to an irrational politicization of truth. The book will appeal particularly to those interested in political history, histories of philosophy, the philosophy of sciences, and ethics. Robert C. Trundle, Jr. is a member of the New York Academy of Sciences and the Scientific Research Society of Sigma Xi, an affiliate scholar for Idealistic Studies, and has served as reader for University de Laval's Laval Theologique et Philosphique. His publications include over three dozen articles in Res Publica, Logique et Analyse, Thought, Philosphy in Science, and New Horizons in the Philosophy of Science. His books include Beyond Absurdity (with R. Puligandla), Ancient Greek Philosophy, and Medieval Reasoning. He is currently professor in the department of social sciences and philosophy at Northern Kentucky University. (shrink)

B a c k g r o u n d. According to the genre characteristics, the article is a form of publicizing analytical conclusions from the experience of research in the field of the history of philosophy in the local community of philosophers of Ukraine. The material for understanding was supplied from the environment of educational and scientific professional activity of the authors and was based on the long experience of using a certain type of historical and philosophical sources, (...) which even now constitute the main resource of sources of Ukrainian philosophical education. The article explores the concept of "physical object" in the context of the history of philosophy and examines its relevance for philosophical reflections. It is noted that the variety of interpretations of the term in the history of philosophy creates the need for new methods of revealing its essence M e t h o d s. Problems with establishing the authenticity and verifiability of such sources prompted the search for methods and techniques of source studies in related fields of knowledge, in particular analytical philosophy and philosophy of science. The article uses an analytical approach based on the study of historical and philosophical sources. Methods of source studies are used to solve problems related to the authenticity and reliability of sources R e s u l t s. With this in mind, the purpose of scientific research was to justify the appropriateness of using such a phenomenon as a "physical object" in historical-philosophical research. It was established that, despite the significant unusualness of the presence of a terminological counterpart to this phenomenon in the historical-philosophical realm, its implementation and application has significant creative potential. C o n c l u s i o n s. After a concise inquiry, the authors have reached a consensus that, in contemporary research on the history of philosophy within the Ukrainian philosophical community, it is pertinent and essential to develop a methodology. This methodology should be founded on the imperative of establishing the initial point for comprehensively studying the philosophical primary source, treating it as a "physical object". (shrink)

"Blurb & Contents" This collection of the finest recent articles from Physics Today is a fascinating chronicle of the people and events shaping modern science and society. Includes profiles, personal memoirs, and histories of important institutions and organizations. Among the more than 60 contributors are such distinguished figures as Murray Gell-Mann, Robert Hofstadter, Irving Langmuir, Abraham Pais, Norman Ramsey, Emilio Segre, and Victor Weisskopf.

The objective of this research was to systematize the results of existing publications on basic recreational activities in Basic Education students during the years 2019 to 2023. The method adopted in the research was a review of the scientific literature, based on a documentary design, involving the stages that include exploring the sources, carrying out the filtering process to select the most significant and relevant studies, then interpreting the results and subsequently analyzing them. The type of research was a (...) systematic, retrospective, observational review. The databases considered were Scopus, Scielo, EBSCOHOST and Sciencedirect. As inclusion and exclusion criteria, studies from the last 5 years were taken into account, which considered the research variables taking them in a general or specific way and no books, theses or conference documents were taken. The presentation of the results was used following the PRISMA method adapted from the year 2020. The results of the systematic review allowed us to theoretically associate the recreational physical activities carried out by basic education students with personal perception, motivation, psychosocial aspects and social barriers that constitute factors. conditions for its execution. (shrink)

In this timely and outstanding contribution, Andreas Lammer tackles central concepts and problems in Avicenna's Physics of the Healing. The analysis provides a wide-ranging but cohesive study of Avicenna's approach and ideas. The philological and philosophical analysis of the historical context of Avicenna's arguments pays dividends. Avicenna's—often radical—reworking of Aristotle's approach in the Physics critically engages a long tradition of Peripatetic and Neoplatonic philosophy in Greek and Arabic. Lammer's contribution, based on his doctoral dissertation, lays fertile ground for (...) future work. Given the limitations of this review, I focus in the following on the results and fruitful questions raised by chapters... (shrink)

Physics and Philosophy is a collection of essays previously published in sources as diverse as Philosophy of Science and Yale Alumni Magazine. Margenau has appended to these essays a brief autobiography, a bibliography, and an apology for a "redundancy of emphasis" in the collection.

Gerald Holton has famously described Einstein’s career as a philosophical “pilgrimage”. Starting on “the historic ground” of Machian positivism and phenomenalism, following the completion of general relativity in late 1915, Einstein’s philosophy endured (a) a speculative turn: physical theorizing appears as ultimately a “pure mathematical construction” guided by faith in the simplicity of nature and (b) a realistic turn: science is “nothing more than a refinement ”of the everyday belief in the existence of mind-independent physical reality. Nevertheless, Einstein’s mathematical constructivism (...) that supports his unified field theory program appears to be, at first sight, hardly compatible with the common sense realism with which he countered quantum theory. Thus, literature on Einstein’s philosophy of science has often struggled in finding the thread between ostensibly conflicting philosophical pronouncements. This paper supports the claim that Einstein’s dialog with Émile Meyerson from the mid 1920s till the early 1930s might be a neglected source to solve this riddle. According to Einstein, Meyerson shared (a) his belief in the independent existence of an external world and (b) his conviction that the latter can be grasped only by speculative means. Einstein could present his search for a unified field theory as a metaphysical-realistic program opposed to the positivistic-operationalist spirit of quantum mechanics. (shrink)

Physics first became established in Australia and Japan at the same period, during the final quarter of the nineteenth and the first years of the twentieth century. A comparison of the processes by which this happened in these two developing countries on the Pacific rim shows that, despite the great cultural differences that existed, and that might have been expected to have been a source of major differences in national receptiveness to the new science, there were in fact many (...) parallels between the patterns of development in the two cases. Identifying these enables us to draw attention to a number of significant features of the physics discipline more generally at this period. Such differences as emerge in the early history of physics in the two countries seem to have arisen more from the different political situations that prevailed than from anything else; in particular they reflect the fact that Australia was a part of the British Empire while Japan was an independent political power. (shrink)

Derived measurements involve problems of coordination. Conducting them often requires detailed theoretical assumptions about their target, while such assumptions can lack sources of evidence that are independent from these very measurements. In this paper, I defend two claims about problems of coordination. I motivate both by a novel case study on a central measurement problem in the history of physical geodesy: the determination of the earth's ellipticity. First, I argue that the severity of problems of coordination varies according to (...) scientists' predictive and experimental control over perturbations of the measurement process. Second, I identify a methodology by which scientists can solve hard problems of coordination and gradually increase their predictive control over perturbations. I dub this methodology ‘operational pluralism’ since it is driven by the introduction of alternative measurement operations that involve different physical indicators. (shrink)

This study is the first comprehensive analysis of the physical theory of the Islamic philosopher Avicenna (d. 1037). It seeks to understand his contribution against the developments within the preceding Greek and Arabic intellectual milieus, and to appreciate his philosophy as such by emphasising his independence as a critical and systematic thinker. Exploring Avicenna’s method of "teaching and learning," it investigates the implications of his account of the natural body as a three-dimensionally extended composite of matter and form, and examines (...) his views on nature as a principle of motion and his analysis of its relation to soul. Moreover, it demonstrates how Avicenna defends the Aristotelian conception of place against the strident criticism of his predecessors, among other things, by disproving the existence of void and space. Finally, it sheds new light on Avicenna’s account of the essence and the existence of time. For the first time taking into account the entire range of Avicenna’s major writings, this study fills a gap in our understanding both of the history of natural philosophy in general and of the philosophy of Avicenna in particular. (shrink)

This paper claims that, to the extent that temporal direction figures in physics at all, it is found there as part of the extra-scientific language science employs. The asymmetry between “before” and “after” is not captured by the mathematics of any theory, nor can it be derived from the laws of any theory. This, I argue, is true even of theories whose laws are not time reversal invariant. Recognizing that physics does not yield temporal direction but receives it (...) from the background in which physics develops and operates does not, however, expose any hitherto unknown limitations or deficiencies of physics. The claim is not about physics, but about metaphysical stances regarding physics, specifically, physicalism, which requires from physics to deliver more than it does, or should. Once the place of temporal direction in physics is understood, infamous difficulties can be addressed in a novel way. Issues emerging from the 2nd law of thermodynamics, such as the minimum problem, and the worry that the law generates outlandish predictions, are removed. A side benefit is the recognition that the past hypothesis is superfluous. A final conclusion of the paper is that the relationship between physics and everyday language, far from being a source of difficulties, is healthy and beneficial to both. (shrink)

SummaryThis essay concerns the concept of reality, considered in the perspective of physics. It tries to reconstruct the process of thought by which this concept is constituted. In this process, reality is transferred from the lived experience of existence, apprehended in the simple consciousness of oneself, to what gives itself, in experience, as an independent source of givenness, and finally to the world, as ultimate condition of the phenomena. In physics, we have to do with an approach of (...) reality which is in terms of representation and no more in terms of lived experience. But in contemporary physics the representation is intimately connected with our praxis. What is really described is not the manifest as such, but the manifestation . The discourse of representation is no more about the phenomena themselves but about the conditions in which the phenomenon constitutes itself as phenomenon. The discourse of physics becomes thus more and more transcendental. But it integrates the transcendental discourse in the representation, giving a concrete appresentation of the non‐representable process of the becoming manifest of reality. (shrink)

The Age of Enlightenment was characterized by passionate scientific discussions, which involved not only scientists, but also representatives of various social circles. Sciences such as physics and astronomy are becoming a hobby and entertainment, scientific experiments are being conducted at home, friends and acquaintances are invited to conduct them, and amateur scientific courses are being organized. The article highlights how these processes were reflected in the painting of the XVIII century. Science is considered not only as a widespread subject (...) in works of fine art, but also as a force capable of influencing artistic theory and practice. The author also studied the coexistence of scientific, religious and "mythological" thinking, since in this era all these forms remained relevant. A wide range of visual material is used, allowing us to see fascination and even admiration for science as a pan-European trend, to which Russia was also attached. The research methodology involves a combination of a sociological approach, as well as a variety of methods used in art criticism. The need to work with the original tests of the 18th century implied the use of source analysis. Researchers, especially foreign ones, have shown interest in the topic of interaction between art and science, but a full-scale study on this topic has not yet been carried out. Although this article does not pretend to be complete, it nevertheless touches on very significant and little-studied topics. The author managed to show the variety of aspects of reflecting the scientific sphere of the Enlightenment in the mirror of painting. It demonstrates how interest in science placed the painter in the context of constant searches and led to unexpected discoveries and results. For the first time, attention is drawn to the fact that many masters of that time were involved in the dialogue between art and science, much more numerous than it seems at first glance, and understanding scientific issues became a sign of the artist's integration into the European cultural environment, a symptom of his successful socialization. (shrink)

_ Source: _Volume 29, Issue 1, pp 9 - 38 Hobbes tried to develop a strict version of the mechanical philosophy, in which all physical phenomena were explained only in terms of bodies in motion, and the only forces allowed were forces of collision or impact. This ambition puts Hobbes into a select group of original thinkers, alongside Galileo, Isaac Beeckman, and Descartes. No other early modern thinkers developed a strict version of the mechanical philosophy. Natural philosophies relying solely on (...) bodies in motion require a concept of inertial motion. Beeckman and Descartes assumed rectilinear motions were rectilinear, but Galileo adopted a theory which has been referred to as circular inertia. Hobbes’s natural philosophy depended to a large extent on what he called “simple circular motions.” In this paper, I argue that Hobbes’s simple circular motions derived from Galileo’s belief in circular inertia. The paper opens with a section outlining Galileo’s concept, the following section shows how Hobbes’s physics depended upon circular motions, which are held to continue indefinitely. A third section shows the difficulty Hobbes had in maintaining a strictly mechanistic philosophy, and the conclusion offers some speculations as to why Galileo’s circular inertia was never entertained as a serious rival to rectilinear inertia, except by Hobbes. (shrink)

Work in the last decade in the history of philosophy has been characterized by the effort to reclaim texts and make available in English translations and commentaries the full range of philosophical writings of major figures and schools. The focal point of this article is the work of the Theophrastus Project, which has produced over the last fifteen years, eight biennial conferences with published proceedings and a truly comprehensive collection of fragments and testimonia, "Theophrastus of Eresus Sources for his (...) Life, Writings, Thought and Influence". The question is: How should philosophers approach an author who played a significant role in the history of philosophy but where relatively few texts are extant? (shrink)

The eighth book of Aristotle's Physics is the culmination of his theory of nature. He discusses not just physics, but the origins of the universe and the metaphysical foundations of cosmology and physical science. He moves from the discussion of motion in the cosmos to the identification of a single source and regulating principle of all motion, and so argues for the existence of a first `unmoved mover'. Daniel Graham offers a clear, accurate new translation of this key (...) text in the history of Western thought, and accompanies the translation with a careful philosophical commentary to guide the reader towards an understanding of the wealth of important and influential arguments and ideas that Aristotle puts forward. (shrink)

One of the most exciting debates in philosophy of imagination in recent years has been over the epistemic use of imagination where imagination epistemically contributes to justifying beliefs and acquiring knowledge. This paper defends “generationism about imagination” according to which imagination is a generative source, rather than a preservative source, of justification. In other words, imagination generates new justification above and beyond prior justification provided by other sources. After clarifying the generation/preservation distinction (Section 2), we present an argument for (...) generationism about imagination, which can be divided into two parts; the philosophical part and the empirical part. In the philosophical part of our argument (Section 3), we claim that generationism about imagination follows from what we call “INACCESSIBILITY”. According to INACCESSIBILITY, imagination is properly constrained by the imaginative constrainers (i.e., the prior representations that constrain the development of a scenario in imagination) to which non-imaginative belief-forming processes do not have access. In the empirical part of our argument (Section 4), we claim that INACCESSIBILITY is plausible in light of relevant studies and theories in the empirical literature, especially the literature on mental simulation (Section 4.1), core cognition (Section 4.2), and intuitive physics (Section 4.3). (shrink)

The eighth book of Aristotle's Physics is the culmination of his theory of nature. He discusses not just physics, but the origins of the universe and the metaphysical foundations of cosmology and physical science. He moves from the discussion of motion in the cosmos to the identification of a single source and regulating principle of all motion, and so argues for the existence of a first `unmoved mover'. Daniel Graham offers a clear, accurate new translation of this key (...) text in the history of Western thought, and accompanies the translation with a careful philosophical commentary to guide the reader towards an understanding of the wealth of important and influential arguments and ideas that Aristotle puts forward. (shrink)

This volume relates to natural philosophy apart from the study of living things. Topics covered include the principles of scientific inquiry, place, time, motion, the heavens, the sublunary world, meteorology and the study of materials.

Human consciousness, the result of breathing process as dealt with in the Upanishads, is translated into modern scientific terms and modeled as a mechanical oscillator of infrasonic frequency. The bio-mechanic oscillator is also proposed as the source of psychic energy. This is further advanced to get an insight of human consciousness (the being of mind) and functions of mind (the becoming of mind) in terms of psychic energy and reversible transformation of its virtual reflection. An alternative analytical insight of human (...) consciousness and mental functions to other theoretical approaches is developed based on Upanishadic insight and presented.That reversible transformation of virtual psychic energy reflection termed as maya, creating various consequential / parallel / simultaneous conscious-states, phases, cognitive and communicative states, modes of language acquisition and communication, and kinds of function of human mind is visualized. The concept is extended to delineate form, structure and functional mechanism of human mind and to know how it facilitates human mental acquisitions, retention, communications, including language abilities. This proposal is extensively discussed and the hardware and software of mind as envisaged in Indian philosophical systems are put forward.All this presentation is translated to neuro-biology in terms of brain wave modulation / demodulation terms. Also a preliminary proposition of physic-chemical nature of human thoughts and ideas is given. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Ideas 62.1 (2001) 99-119 [Access article in PDF] Animism and Empiricism: Copernican Physics and the Origins of William Gilbert's Experimental Method John Henry In the second year of this journal's run, way back in 1941, appeared Edgar Zilsel's classic and still widely cited paper on The Origins of William Gilbert's Experimental Method. 1 Focusing on Gilbert's De magnete of 1600, undoubtedly a seminal (...) text in the history of the experimental method, 2 Zilsel argued that Gilbert borrowed his methodology from elite craftsmen, artisans, and other manual workers involved in mining, smelting, smithing, compass making, navigation, sailing, and other activities which involved working with iron or with magnets. 3 On its appearance the paper contributed to a growing and still continuing debate in the history of science about the relative importance of scholars and craftsmen in the origins of modern science. Although Zilsel's general thesis has been critically evaluated in terms of that wider debate, 4 his very specific claims about the [End Page 99] role of elite craftsmen in providing Gilbert with a ready-made experimental method, have never been properly considered. This paper attempts to reassess Zilsel's claims about the origin of Gilbert's experimental method and, in so doing, to arrive at a richer understanding of what Gilbert was trying to do in De magnete and to suggest an alternative source for his experimentalism.The first thing to note about Zilsel's argument is that it had two strands. 5 One of these pointed to actual experimental techniques used by Gilbert and showed that they can all be found in earlier writings on magnets. To be more specific, the techniques in question are to be found either in the thirteenth-century "Letter on the Magnet" written by Petrus Pergrinus or Pierre de Maricourt, first published in 1558, or in The Newe Attractive, a work on the magnetic compass written by a retired mariner, Robert Norman, first published in 1581 but reprinted three times before 1600. 6 The second strand did not involve experiments at all, with one notable exception, but simply implied or suggested that Gilbert's experimental techniques must have been inspired by miners and foundrymen, or navigators and instrument makers. The problem here, as others have objected, 7 is that it is by no means clear that elite craftsmen were engaged in performing experiments in anything like the sense of the word required for the argument to cut any ice. For Zilsel, however, "we cannot doubt that many of [the miners and foundrymen of the period], stimulated to improvements by economic competition, were wont to try new techniques and to observe natural processes." 8 A few sentences later we are told that it is "obvious" that "among such manual labourers there were experimentalists, though experimentalists with practical aims only and without theoretical knowledge." 9 [End Page 100]The philosopher of science at this point might legitimately want to suggest that an experiment is not an experiment unless it is testing a theory, but we do not have to enter into such arguable niceties. 10 We can see that there is something profoundly tendentious in Zilsel's claims simply by reading on. At this point Zilsel mentioned the only experiment specifically referred to in this strand of his argumentation. Quoting Gilbert, Zilsel showed that Gilbert himself must have descended into a mine in order, as Zilsel says, "to verify the hypothesis" that the polarity of a magnet derives from the polarity of the earth: We had a twenty pounds' heavy loadstone dug and hauled out after having first observed and marked its ends in its vein. Then we put the stone in a wooden tub on water, so that it could turn freely. Immediately the surface which had looked to the North in the mine turned itself to the North on the water. 11Zilsel did not make the absurd claim that Gilbert must have seen miners doing this kind of experiment, but he did all he could to... (shrink)

Drawing on ideas from philosophy (in particular, epistemology), I argue that one of memory’s most important functions is to provide its owner with knowledge of the physical world. This knowledge helps satisfy the organism’s need to confer stability on an ever-changing reality so the objects in which it consists can be identified and reidentified. I then draw a distinction between sources of knowledge (i.e., from physical vs. subjective reality) and argue—based on evolutionary principles—that because memory was designed by natural (...) selection to interface with the physical world, knowledge acquired via sensory/perceptual experiences should be better remembered than internally generated knowledge made available by introspection. A study conducted to test this hypothesis provides support. I conclude that a serious interdisciplinary approach to issues typically considered the purview of psychology best enables researchers to craft well-specified, theoretically based hypotheses that directly target functions of the mind. (shrink)

The paper examines the realignment of the legal sources in an information society, by considering first of all the differences with the previous system of sources, dubbed as the “Westphalian model”. The current system is tripartite, rather than bipartite, for the sources of transnational law should be added to the traditional dichotomy between national and international law. In addition, the system is dualistic, rather than monistic, because the tools of legal constructivism, such as codes or statutes, have (...) to be complemented with the rules of customary law and contracts. In light of the canonical version of the law as a set of commands enforced through the threat of physical sanctions, however, two further novelties must be stressed, namely the soft law-tools of governance as a source of the system and the aim to embed normative constraints into technology, in order to enforce the law through the use of filtering systems, self-enforcing technologies, etc. This latter approach impacts on functions and requirements of the system, by transferring the normative side of the law from the traditional “ought to” of legal commands to what actually is on the basis of automatic techniques, thus affecting the very notion of source. The overall aim of the paper is to show that rearrangements of the legal sources are intertwined with redistributions of power and hence, a normative standpoint is needed, so as to determine whether scholars can obtain the solution that best justifies the integrity of the law before its hard cases, or the answer is a reasonable compromise between many conflicting interests. (shrink)

The brain's reliance on glucose as a primary fuel source is well established, but psychological models of cognitive processing that take energy supply into account remain uncommon. One exception is research on self-control depletion, where debate continues over a limited-resource model of self-control depletion. This model argues that transient reduction in self-control after exertion of prior self-control is caused by the depletion of brain glucose, and that self-control processes are special, perhaps unique, in this regard. This model has been argued (...) to be physiologically implausible in several recent reviews. This paper attempts to correct some inaccuracies that have occurred during debate over the physiological plausibility of this model. We contend that not only is such limitation of cognition by constraints on glucose supply plausible, it is well established in the neuroscience literature across several cognitive domains. Conversely, we argue that there is no evidence that self-control is special in regard to its metabolic cost. Mental processes require physical energy, and the body is limited in its ability to supply the brain with sufficient energy to fuel mental processes. This article reviews current findings in brain metabolism and seeks to resolve the current conflict in the field regarding the physiological plausibility of the self-control glucose-depletion hypothesis. (shrink)

Because of the complex interdependence of physics and mathematics their relation is not free of tensions. The paper looks at how the tension has been perceived and articulated by some physicists, mathematicians and mathematical physicists. Some sources of the tension are identified and it is claimed that the tension is both natural and fruitful for both physics and mathematics. An attempt is made to explain why mathematical precision is typically not welcome in physics.

Means-based harms are frequently seen as forbidden, even when they lead to a greater good. But, are there mitigating factors? Results from five experiments show that judgments about means-based harms are modulated by: 1) Pareto considerations (was the harmed person made worse off?), 2) the directness of physical contact, and 3) the source of the threat (e.g. mechanical, human, or natural). Pareto harms are more permissible than non-Pareto harms, Pareto harms requiring direct physical contact are less permissible than those that (...) do not, and harming someone who faces a mechanical threat is less permissible than harming someone who faces a non-mechanical threat. These results provide insight into the rich representational structure underlying folk-moral computations, including both the independent and interacting roles of the inevitability, directness and source of harm. (shrink)

Objectives: The present study aimed to systematically analyze the effects of physical activity on executive function, working memory, cognitive flexibility, and activities of daily living in Alzheimer's disease patients and to provide a scientific evidence-based exercise prescription.Methods: Both Chinese and English databases were used as sources of data to search for randomized controlled trials published between January 1980 and December 2019 relating to the effects of physical activity on executive function, working memory, cognitive flexibility, and ADL issues in AD (...) patients. Sixteen eligible RCTs were ultimately included in the meta-analysis.Results: Physical activity had significant benefits on executive function [standard mean difference = 0.42, 95% confidence interval 0.22–0.62, p < 0.05], working memory, cognitive flexibility, and ADLs among AD patients. Subgroup analysis indicated that, for executive function issues, more than 60 min per session for 16 weeks of moderate-to-high-intensity dual-task exercises or multimodal exercise had a greater effect on AD patients. For working memory and cognitive flexibility issues, 60–90 min of moderate-intensity dual-task exercises 1–4 times/week was more effective. For ADL issues, 30–90 min of multimodal exercise at 60–79% of maximal heart rate 3–4 times/week had a greater effect on AD patients.Conclusions: Physical activity was found to lead to significant improvements in executive function, working memory, cognitive flexibility, and ADLs in AD patients and can be used as an effective method for clinical exercise intervention in these patients. However, more objective, scientific, and effective RCTs are needed to confirm this conclusion. (shrink)

The mechanism of stellar aberration was explained and formulated by Bradley in terms of the existence of a unique reference frame for light propagation. However, Einstein's denial of the existence of such a frame appears to undermine Bradley's interpretation of the phenomenon. It is suggested that the recent evidence for a cosmologically-based inertial reference frame provides a new physical basis for Bradley's explanation in a manner consistent with the requirements of special relativity. It is shown that a “delay” effect is (...) also involved in our observation of the direction of nearby sources, and that the aberration and delay effects exactly compensate for nearby sources comoving with a terrestrial observer. (shrink)

The contributions gathered here demonstrate how categorical ontology can provide a basis for linking three important basic sciences: mathematics, physics, and philosophy. Category theory is a new formal ontology that shifts the main focus from objects to processes. The book approaches formal ontology in the original sense put forward by the philosopher Edmund Husserl, namely as a science that deals with entities that can be exemplified in all spheres and domains of reality. It is a dynamic, processual, and non-substantial (...) ontology in which all entities can be treated as transformations, and in which objects are merely the sources and aims of these transformations. Thus, in a rather surprising way, when employed as a formal ontology, category theory can unite seemingly disparate disciplines in contemporary science and the humanities, such as physics, mathematics and philosophy, but also computer and complex systems science. (shrink)