Why does one theory "succeed" while another, possibly clearer interpretation, fails? By exploring two observationally equivalent yet conceptually incompatible views of quantum mechanics, James T. Cushing shows how historical contingency can be crucial to determining a theory's construction and its position among competing views. Since the late 1920s, the theory formulated by Niels Bohr and his colleagues at Copenhagen has been the dominant interpretation of quantum mechanics. Yet an alternative interpretation, rooted in the work of Louis de Broglie in (...) the early 1920s and reformulated and extended by David Bohm in the 1950s, equally well explains the observational data. Through a detailed historical and sociological study of the physicists who developed different theories of quantum mechanics, the debates within and between opposing camps, and the receptions given to each theory, Cushing shows that despite the preeminence of the Copenhagen view, the Bohm interpretation cannot be ignored. Cushing contends that the Copenhagen interpretation became widely accepted not because it is a better explanation of subatomic phenomena than is Bohm's, but because it happened to appear first. Focusing on the philosophical, social, and cultural forces that shaped one of the most important developments in modern physics, this provocative book examines the role that timing can play in the establishment of theory and explanation. (shrink)

From the beginning, the implications of quantum theory for our most general understanding of the world have been a matter of intense debate. Einstein argues that the theory had to be regarded as fundamentally incomplete. Its inability, for example, to predict the exact time of decay of a single radioactive atom had to be due to a failure of the theory and not due to a permanent inability on our part or a fundamental indeterminism in nature itself. In 1964, John (...) Bell derived a theorem which showed that any deterministic theory which preserved locality would have certain consequences for measurements performed at a distance from one another. An experimental check seems to show that these consequences are not, in fact, realized. The correlation between the sets of events is much stronger than any local deterministic theory could allow. What is more, this stronger correlation is precisely that which is predicted by quantum theory. The astonishing result is that local deterministic theories of the classical sort seem to be permanently excluded. Not only can the individual decay not be predicted, but no future theory can ever predict it. The contributors in this volume wrestle with this conclusion. Some welcome it; others leave open a return to at lease some kind of deterministic world, one which must however allow something like action-at-a distance. How much lit it? And how can one avoid violating relativity theory, which excludes action-at-a-distance? How can a clash between the two fundamental theories of modern physics, relativity and quantum theory, be avoided? What are the consequences for the traditional philosophic issue of causality explanation and objectivity? One thing is certain; we can never return to the comfortable Newtonian world where everything that happened was, in principle, predictable and where what happened at one measurement site could not affect another set of measurements being performed light-years away, at a distance that a light-signal could not bridge. Contributors: James T. Cushing, Abner Shimony, N. David Mermin, Jon P. Jarrett, Linda Wessels, Bas C. van Fraassen, Jeremy Butterfield, Michael L. G. Redhead, Henry P. Stapp, Arthur Fine, R. I. G. Hughes, Paul Teller, Don Howard, Henry J. Folse, and Ernan McMullin. (shrink)

We are often told that quantum phenomena demand radical revisions of our scientific world view and that no physical theory describing well defined objects, such as particles described by their positions, evolving in a well defined way, let alone deterministically, can account for such phenomena. The great majority of physicists continue to subscribe to this view, despite the fact that just such a deterministic theory, accounting for all of the phe nomena of nonrelativistic quantum mechanics, was proposed by David Bohm (...) more than four decades ago and has arguably been around almost since the inception of quantum mechanics itself. Our purpose in asking colleagues to write the essays for this volume has not been to produce a Festschrift in honor of David Bohm or to gather together a collection of papers simply stating uncritically Bohm's views on quantum mechanics. The central theme around which the essays in this volume are arranged is David Bohm's version of quantum mechanics. It has by now become fairly standard practice to refer to his theory as Bohmian mechanics and to the larger conceptual framework within which this is located as the causal quantum theory program. While it is true that one can have reservations about the appropriateness of these specific labels, both do elicit distinc tive images characteristic of the key concepts of these approaches and such terminology does serve effectively to contrast this class of theories with more standard formulations of quantum theory. (shrink)

One of the major philosophical problems in physical sciences is what criteria should determine how scientific theories are selected and justified in practice and whether, in describing observable physical phenomena, such theories are effectively constrained to be unique. This book studies the example of a particular theory, the S-matrix theory. The S-matrix program was initiated by Heisenberg to deal with difficulties encountered in quantum field theories in describing particular phenomena. Since then, each theory has at different times been favored as (...) the explanation of observed phenomena. Certainly the S-matrix theory was adequate, feasible and fertile. However, the quantum field theory interpretation is now widely accepted and the study of alternative theories is all but abandoned. By examining the philosophy which influenced the turns in this story, the author explains how an adequate and viable theory fell out of favor and concludes with a critique of different methodologies in the history of science. (shrink)

The task of visual search is to determine as rapidly as possible whether a target item is present or absent in a display. Rapidly detected items are thought to contain features that correspond to primitive elements in the human visual system. In previous theories, it has been assumed that visual search is based on simple two-dimensional features in the image. However, visual search also has access to another level of representation, one that describes properties in the corresponding three-dimensional scene. Among (...) these properties are three dimensionality and the direction of lighting, but not viewing direction. These findings imply that the parallel processes of early vision are much more sophisticated than previously assumed. (shrink)

This book examines a selection of philosophical issues in the context of specific episodes in the development of physical theories. Advances in science are presented against the historical and philosophical backgrounds in which they occurred. A major aim is to impress upon the reader the essential role that philosophical considerations have played in the actual practice of science. The book begins with some necessary introduction to the history of ancient and early modern science, with major emphasis being given to the (...) two great watersheds of twentieth-century physics: relativity and, especially, quantum mechanics. At times the term 'construction' may seem more appropriate than 'discovery' for the way theories have developed and, especially in the later chapters, the question of the influence of historical, philosophical and even social factors on the very form and content of scientific theories is discussed. (shrink)

Previous theories of early vision have assumed that visual search is based on simple two-dimensional aspects of an image, such as the orientation of edges and lines. It is shown here that search can also be based on three-dimensional orientation of objects in the corresponding scene, provided that these objects are simple convex blocks. Direct comparison shows that image-based and scene-based orientation are similar in their ability to facilitate search. These findings support the hypothesis that scene-based properties are represented at (...) preattentive levels in early vision. (shrink)

Empirical adequacy, formal explanation and understanding are distinct goals of science. While no a priori criterion for understanding should be laid down, there may be inherent limitations on the way we are able to understand explanations of physical phenomena. I examine several recent contributions to the exercise of fashioning an explanatory discourse to mold the formal explanation provided by quantum mechanics to our modes of understanding. The question is whether we are capable of truly understanding (or comprehending) quantum phenomena, as (...) opposed to simply accepting the formalism and certain irreducible quantum correlations. The central issue is that of understanding versus merely redefining terms to paper over our ignorance. (shrink)

In the philosophy of science, we are to assess critically and on their intrinsic merits various proposals for a consistent interpretation of quantum mechanics, including resolutions of the measurement problem and accounts of the long-range Bell correlations. In this paper I suggest that the terms of debate may have been so severely and unduly constrained by the reigning orthodoxy that we labor unproductively with an unhelpful vocabulary and set of definitions and distinctions. I present an alternative conceptual framework, free of (...) many of the standard conundrums. (shrink)

A case study of the development of quantum field theory and of S-matrix theory, from their inceptions to the present, is presented. The descriptions of science given by Kuhn and by Lakatos are compared and contrasted as they apply to this case study. The episodes of the developments of these theories are then considered as candidates for competing research programs in Lakatos' methodology of scientific research programs. Lakatos' scheme provides a reasonable overall description and a plausible assessment of the relative (...) value of these two programs in terms of progressive and degenerating problem shifts. Also discussed are the roles of various types of models as they have been used in these areas of theoretical high-energy physics. (shrink)

One of the most persuasive objections to the identity thesis.

An exploration of the moral and ethical implications of new biotechnologies Many of the ethical issues raised by new technologies have not been widely examined, discussed, or indeed settled. For example, robotics technology challenges the notion of personhood. Should a robot, capable of making what humans would call ethical decisions, be held responsible for those decisions and the resultant actions? Should society reward and punish robots in the same way that it does humans? Likewise, issues of safety, environmental concerns, and (...) distributive justice arise with the increasing acceptance of genetically modified organisms in food production nanotechnology in engineering and medicine, and human gene therapy and enhancement. The problem of dual-use—when a technology can be used both to benefit and to harm—exists with virtually all new technologies but is central in the context of emerging 21st century technologies ranging from artificial intelligence and robotics to human gene-editing and brain-computer interfacing. In Re-Creating Nature: Science, Technology, and Human Values in the Twenty-First Century, James T. Bradley addresses emerging biotechnologies with prodigious potential to benefit humankind but that are also fraught with ethical consequences. Some actually possess the power to directly alter the evolution of life on earth including human. Specifically, these topics include stem cells, synthetic biology, GMOs in agriculture, nanotechnology, bioterrorism, CRISPR gene-editing technology, three-parent babies, robotics and roboethics, artificial intelligence, and human brain research and neurotechnologies. Offering clear explanations of these various technologies, a pragmatic presentation of the conundrums involved, and questions that illuminate hypothetical situations, Bradley guides discussions of these and other thorny issues resulting from the development of new biotechnologies. He also highlights the responsibilities of scientists to conduct research in an ethical manner and the responsibilities of nonscientists to become “science literate” in the twenty-first century. (shrink)

The Handbook of Roman Catholic Moral Terms contains more than 800 moral terms, offering concise definitions, historical context, and illustrations of how these terms are used in the Catholic tradition, including Church teaching and documents. James T. Bretzke, SJ, places Catholic tradition in a contemporary context in order to illuminate the continuities as well as discontinuities of Church teaching and key directions of Catholic thought. The author also provides extensive cross-referencing and bibliographic suggestions for further research. Designed to serve (...) as a vital reference work for libraries, students and scholars of theology, priests and pastoral ministers, as well as all adults interested in theological enrichment or continuing education, the Handbook of Roman Catholic Moral Terms is the most comprehensive post–Vatican II work of its kind available in English. (shrink)

Many factors are operative in the scientific enterprise to provide the epistemic warrant which finally convinces people to accept a scientific theory. The methods, goals and meanings of terms do not remain fixed, but evolve over time. This paper concentrates on one aspect of this shifting pattern of scientific practice - the role and meaning of causality in modern physics.

I argue that historical contingency, in the sense of the order in which events take place, can be an essential factor in determining which of two equally adequate and fruitful, but observationally indistinguishable, scientific theories is accepted by the scientific community. This type of actual underdetermination poses questions for scientific realism and for rational reconstruction in theory evaluation. To illustrate this, I discuss the complete observational equivalence of two radically different, conceptually incompatible interpretations of quantum mechanics and argue that an (...) entirely plausible reordering of historical factors could reasonably have resulted in the causal program having been chosen over the "Copenhagen" one. (shrink)

Examples of theory development in quantum field theory and in S-matrix theory are related to three questions of interest to the philosophy of science. The first is the central role of highly abstract, mathematical models in the creation of theories. Second, the process of creation and justification actually used make it plausible that a successful theory is equally well characterized as being stable against attack rather than as being objectively correct. Lastly, the issue of the reality of theoretical entities is (...) discussed in light of this representation of theory generation and selection. (shrink)

Examples, mainly from research in current physics, are used to examine and illustrate the network of factors which produce in scientific debate a convergence of opinion to a generally accepted set of laws and theories. Also addressed is the question of the reliability of these general theories as a faithful representation of the complexity of physical reality.

It has generally been assumed that rapid visual search is based on simple features and that spatial relations between features are irrelevant for this task. Seven experiments involving search for line drawings contradict this assumption; a major determinant of search is the presence of line junctions. Arrow- and Y-junctions were detected rapidly in isolation and when they were embedded in drawings of rectangular polyhedra. Search for T-junctions was considerably slower. Drawings containing T-junctions often gave rise to very slow search even (...) when distinguishing arrow- or Y-junctions were present. This sensitivity to line relations suggests that preattentive processes can extract 3-dimensional orientation from line drawings. A computational model is outlined for how this may be accomplished in early human vision. (shrink)

Machine generated contents note: INTRODUCTION 1 -- Focus of the Sections and Sub-sections 1 -- East Asian Internet Resources 1 -- A Note on Using the Index 2 -- GENERAL WORKS ON PHILOSOPHY& RELIGION IN ASIA 5 -- BUDDHISM 37 -- Primary Sources 37 -- Buddhist Ethics 38 -- Buddhism and Judeo-Christianity 52 -- Zen Buddhism 69 -- Other Works on Buddhism 76 -- CONFUCIANISM 95 -- Chinese and Confucian Classics 95 -- Translations of the Four Books 95 -- Translations (...) of other Chinese Classics 97 -- Secondary Works on Confucianism and/or the Chinese Classics --00 -- Neo-Confucianism 136 -- Confucian Ethics 150 -- Works on Confucianism and Judeo-Christianity 172 -- TAOISM 191 -- Primary Sources in Translation 191 -- Secondary Works on Chuang-tzu, Lao-tse and/or Taoism192 -- Taoism and Judaeo-Christianity 205 -- CHINESE/ CONFUCIAN UNDERSTANDING OF RELIGION 209 -- BUSINESS & ECONOMIC ETHICS IN ASIA 223 -- General, Miscellaneous, and/or Background Material 223 -- Business & Economic Ethics: China 225 -- Business & Economic Ethics: Japan 226 -- Business & Economic Ethics: Korea 228 -- HUMAN RIGHTS IN THE EAST ASIAN CONTEXT 231 -- ASIAN WOMEN'S PHILOSOPHY &THEOLOGY 247 SELECTED COUNTRIES OF EAST ASIA 2. -- CHINA2 -- China and Christianity2 -- Jesuit Approach to Evangelization in China2( -- Other Works on China and Roman Catholicism2 -- China and Protestantism2 -- Other Works on China and Christianity28 -- Other Works on Chinese Culture and Philosophy 29 -- JA PA N 32 -- Buddhism in Japan32 -- Shintoism and Confucianism in Japan 33 -- Christianity in Japan33, -- Other Works on Japanese Culture, Philosophy and Religion34' -- KOREA35! -- Buddhism in Korea 35! -- Christianity in Korea 36' -- Confucianism and Christianity in Korea 36: -- General Works on Christianity in Korea 36E -- Korea and Catholicism 38C -- Korean-American Christianity 390 -- Confucianism in Korea 394 -- M injung Theology 404 -- Women's Issues and Feminist Theology in Korea 423 -- Shamanism in Korea 432 -- Other Works on Korea, Including General Works on Religion --437 -- EAST ASIAN INTERNET RESOURCES 455 -- SUBJECT-AREA WEB-SITES 455 -- MISCELLANEOUS PHILOSOPHICAL/RELIGIOUS -- STUDIES SITES456 -- EAST ASIAN ART, GEOGRAPHY, HISTORY, AND/OR -- CULTURE SITES 466 -- OTHER ASIAN INTEREST WEB-SITES 471 -- CHINA471 -- JAPAN 480 -- KOREA 481 -- SINGAPORE 486 -- DISCUSSIONAND/OR NEWS GROUPS 486 -- ONLINE (ELECTRONIC) JOURNALS AND NEWSLETTERS488 -- EAST ASIAN ENGLISH-LANGUAGE NEWSPAPERS 494 -- LIBRARIES AND/OR UNIVERSITY WEB-PAGES496 -- SEARCH ENGINES 501 -- INDEX 503. (shrink)

American intellectual history in the future will be embodied, embedded, and extended. Building on a sturdy foundation of past practices, intellectual historians will consolidate the advances of the last half-century and continue to study ideas articulated in multiple registers, by multiple historical actors, for multiple purposes.

Darwin and the Art of Science will consist of excerpts from six of Darwin's books, chosen and introduced by James Costa. The excerpts will be arranged by plant (rather than according to which book they're from) in order to make the most of extraordinary images provided by the Oak Springs Garden Foundation library. As a group, they will provide unparalleled access to Darwin's fascinating observations and musings about the world of plants and how their distinctive features have evolved.