Philosophy

This book has two principal aims: to investigate the conceptual structure of classical electrodynamics, and show that investigating a particular scientific theory can shed light on concerns in the general philosophy of science. It focuses on two basic issues on the interaction between charged particles and classical fields. First, what is the equation of motion of a charged particle interacting with an electromagnetic field? Second, how does the presence of charged particles or sources affect the total field? The book is divided into two parts. Part I focuses on particles — different particle equations of motion and their properties. Part II focuses on fields and their symmetry properties in the presence of particles.

QM_∞ includes quantum field theory and the thermodynamic limit of quantum statistical mechanics — theories which, unlike the ‘ordinary’ quantum theories typically discussed by philosophers, concern infinite systems. The mathematical framework appropriate for the presentation of a theory of ordinary quantum mechanics is essentially unique. For theories of QM_∞, this is not so. This prompts interpretive questions—for instance, about what makes a quantum theory the quantum theory it is — this work aims to chronicle. Having introduced a formal apparatus (operator algebra theory) suited to pursue these questions, the book articulates a variety of accounts of the content of quantum theories, accounts responsive to QM_∞'s characteristic non-uniqueness. To evaluate these accounts, the book examines QM_∞ settings (e.g. spontaneous symmetry breaking, cosmological particle creation, superconductivity) in which that characteristic non-uniqueness seems to matter, with a view toward determining which accounts sustain the uses to which the non-uniqueness is put. This approach not only brings work on the foundations of quantum theories in contact with the foundational investigation of other sorts of physical theories (e.g., thermodynamics, statistical mechanics, solid state physics, general relativity, and cosmology), it also brings the philosophy of physics in contact with other sorts of philosophy of science (e.g., accounts of explanation, reduction, and explanationist defenses of scientific realism). The book concludes that received notions of physical content and physical modality must be revised if they are to apply usefully to particular physical theories.

This volume consists of fourteen chapters that focus on a trio of interrelated themes. First: what are the powers and limits of appeals to intuition in supporting or refuting various sorts of claims? Second: what are the cognitive consequences of engaging with content that is represented as imaginary or otherwise unreal? Third: what are the implications of these issues for the methodology of philosophy more generally? These themes are explored in a variety of cases, including thought experiments in science and philosophy, early childhood pretense, self‐deception, cognitive and emotional engagement with fiction, mental and motor imagery, automatic and habitual behavior, and social categorization. The chapters are organized into two large sections. Those in Part I—six in all—explore the role of intuition and thought experiment in science and philosophy; those in Part II—the remaining eight—look more generally at the role of imagination in a range of domains. Within each section, the chapters are grouped into pairs. In Part I, the first two look at the role of thought experiments in science; the next two at the role of thought experiments in exploring philosophical questions about personal identity; and the final two at a number of issues concerning intuitions and philosophical methodology more generally. In Part II, the first two chapters explore the relation between pretense and belief; the next two look at the phenomenon of imaginative resistance; the next two consider issues of imagination and emotion; and the final two introduce and discuss an attitude that the book calls alief.

This book presents the concept of “complementary science” which contributes to scientific knowledge through historical and philosophical investigations. It emphasizes the fact that many simple items of knowledge that we take for granted were actually spectacular achievements obtained only after a great deal of innovative thinking, painstaking experiments, bold conjectures, and serious controversies. Each chapter in the book consists of two parts: a narrative part that states the philosophical puzzle and gives a problem-centred narrative on the historical attempts to solve the puzzle; and the analysis part which provides in-depth analyses of certain scientific, historical, and philosophical aspects of the story.

This book examines a variety of ways in which societal values can be more effectively integrated into the numerous judgments associated with policy‐relevant environmental research. It provides a detailed analysis of contemporary research on the hypothesis of hormesis (i.e., beneficial biological effects caused by low‐dose exposure to pollutants that are ordinarily toxic). On the basis of this analysis, as well as shorter case studies of endocrine disruption and multiple chemical sensitivity, the book proposes three lessons. First, university conflict‐of‐interest policies are significantly limited in their ability to prevent interest groups from “hijacking” academic research on sensitive policy‐relevant topics. Therefore, alternative strategies are needed to preserve science that serves the public interest. Second, concerned citizens and policy makers need to more carefully determine the most appropriate forms of broadly based deliberation to be employed in response to specific areas of sensitive, policy‐relevant research. Third, the principle of informed consent, which currently provides guidance in the medical field, suggests a promising ethical framework that can help environmental scientists who disseminate debated findings to the public. Throughout, the book highlights many of the crucial ethical and societal questions surrounding research on the hormesis hypothesis. It thereby constitutes the first book‐length manuscript to provide guidance to the concerned citizens, industry groups, scientists, and policy makers who are exploring ways to respond to this phenomenon.

This book examines Newton’s argument for universal gravity and his application of it to resolve the problem of deciding between geocentric and heliocentric world systems by measuring masses of the sun and planets. Newton’s inferences from phenomena realize an ideal of empirical success that is richer than prediction. To achieve this rich sort of empirical success a theory needs, not only to accurately predict the phenomena it purports to explain, but also, to have those phenomena accurately measure the parameters which explain them. Newton’s method aims to turn theoretical questions into ones which can be empirically answered by measurement from phenomena. Newton employs theory-mediated measurements to turn data into far more informative evidence than can be achieved by confirmation from prediction alone. Propositions inferred from phenomena are provisionally accepted as guides to further research. This methodology, guided by its rich ideal of empirical success, supports a conception of scientific progress that does not require construing it as progress toward Laplace’s ideal limit of a final theory of everything and is not threatened by the classic argument against convergent realism. Newton’s method endorses the radical theoretical transformation from his theory to Einstein’s. It is strikingly realized in the development and application of testing frameworks for relativistic theories of gravity. In addition, it is very much at work in cosmology today.

This book studies Locke's views on the content and method of natural philosophy. Focusing on his Essay concerning Human Understanding, but also drawing extensively from Locke's other writings and manuscript remains, it argues that Locke was an advocate of the Experimental Philosophy: the new approach to natural philosophy championed by Robert Boyle and the early Royal Society. On the question of method, this study demonstrates how Locke's pessimism about the prospects for a demonstrative science of nature led him, in the Essay, to promote Francis Bacon's method of natural history, and to downplay the value of hypotheses and analogical reasoning in science. Yet, it is argued, Locke never abandoned the ideal of a demonstrative natural philosophy, for he believed that, if we could discover the primary qualities of the tiny corpuscles that constitute material bodies, we could then establish a kind of corpuscular metric that would allow us a genuine science of nature. It was only after the publication of the Essay, however, that Locke came to realize that Newton's Principia provided a different model for the role of demonstrative reasoning in science, a model based on principles established by observation. This led Locke to make significant revisions to his views in the 1690s. On the content of Locke's natural philosophy, this book argues that, even though Locke adhered to the Experimental Philosophy he, was not averse to speculation about the corpuscular nature of matter. It takes us into new terrain and new interpretations of Locke's thought through an exploration of his mercurialist transmutational chymistry, his theory of generation by seminal principles, and his conventionalism about species.

The book develops a comprehensive framework for doing philosophy of time. It brings together a variety of different perspectives, linking the ordinary conception of time with the physicist’s conception, and linking questions about time addressed in metaphysics with questions addressed in the philosophy of language. Within this framework, the book explores the temporal dimension of the material world in relation to the temporal dimension of our ordinary discourse about the world. The discussion is centred around the dispute between three-dimensionalists and four-dimensionalists about whether the temporal profile of ordinary objects mirrors their spatial profile. Are ordinary objects extended in time in the same way in which they are extended in space? Do they have temporal as well as spatial parts? Four-dimensionalists say ‘yes’, three-dimensionalists say ‘no’. The book develops an original three-dimensionalist picture of the material world, and argues that this picture is preferable to its four-dimensionalists rivals if ordinary thought and talk are taken seriously. Among the issues discussed are the metaphysics of persistence, change, composition, location, coincidence, and relativity; the ontology of past, present, and future; and the semantics of predication, tense, temporal modifiers, and sortal terms.