This is a comment on the paper by Barnes and the responses from Scerri and Worrall, debating the thesis that a fact successfully predicted by a theory is stronger evidence than a similar fact known before the prediction was made. Since Barnes and Scerri both use evidence presented in my paper on Mendeleev’s periodic law to support their views, I reiterate my own position on predictivism. I do not argue for or against predictivism in the normative sense that philosophers of (...) science employ, rather I describe how scientists themselves use facts and predictions to support their theories. I find wide variations, and no support for the assumption that scientists use a single ‘Scientific Method’ in deciding whether to accept a proposed new theory.Keywords: Predictivism; Novel predictions; Accommodation; Periodic law; Periodic table; Dmitri Mendeleev. (shrink)

A selective history of the benzene problem is presented, starting with August Kekulé's proposal of a hexagonal structure in 1865 and his hypothesis of 1872 that the carbon–carbon bonds oscillate between single and double. Only those theories are included that were accepted or at least discussed by a significant number of chemists. Special attention is given to predictions, their empirical tests, and the effect of the outcomes of those tests on the reception of the theories. At the end of the (...) period covered by this article, chemists generally accepted the valence bond theory proposed by Linus Pauling; some of them considered this a more sophisticated version of Kekulé's oscillation hypothesis. The sequel describes the replacement of the valence bond theory by the molecular orbital theory in the period ending around 1980. (shrink)

Historically, the scientific method has been said to require proposing a theory, making a prediction of something not already known, testing the prediction, and giving up the theory (or substantially changing it) if it fails the test. A theory that leads to several successful predictions is more likely to be accepted than one that only explains what is already known but not understood. This process is widely treated as the conventional method of achieving scientific progress, and was used throughout the (...) twentieth century as the standard route to discovery and experimentation. But does science really work this way? In Making 20th Century Science, Stephen G. Brush discusses this question, as it relates to the development of science throughout the last century. Answering this question requires both a philosophically and historically scientific approach, and Brush blends the two in order to take a close look at how scientific methodology has developed. Several cases from the history of modern physical and biological science are examined, including Mendeleev's Periodic Law, Kekule's structure for benzene, the light-quantum hypothesis, quantum mechanics, chromosome theory, and natural selection. In general it is found that theories are accepted for a combination of successful predictions and better explanations of old facts. Making 20th Century Science is a large-scale historical look at the implementation of the scientific method, and how scientific theories come to be accepted. (shrink)

The history of science and technology has been a scholarly discipline with little attention given to the special needs of undergraduate teaching. What needs to be done to transform a discipline to an undergraduate subject? Suggestions include using the relation between science and technology as well as the role of interpreters in formulation of the popular world view. Relations with science and history departments are considered. Curriculum materials are surveyed with some recommendations for correcting deficiencies.

Are theories judged on the basis of empirical tests of their predictions, as proposed by Karl Popper and others, or are new theories adopted by younger scientists while old theories fade away when their advocates die, as Max Planck suggested? A famous historical episode, the rejection of steady state cosmology and the revival of the big bang cosmology following the 1965 discovery of the cosmic microwave background radiation, is examined to determine whether the scientific community followed Popper’s or Planck’s principle. (...) It is found that by 1975 almost all supporters of the steady state had either switched to the big bang or stopped publishing on cosmology. This case therefore seems to exemplify Popper’s principle, although it should be noted that two of the founders of steady state cosmology had strongly proclaimed their adherence to that principle. The case does not support the Popperian claim that successful novel predictions provide better evidence for a theory than deductions of known facts. (shrink)

T. H. Morgan, A. H. Sturtevant, H. J. Muller and C. B. Bridges published their comprehensive treatise "The Mechanism of Mendelian Heredity" in 1915. By 1920 Morgan 's "Chromosome Theory of Heredity" was generally accepted by geneticists in the United States, and by British geneticists by 1925. By 1930 it had been incorporated into most general biology, botany, and zoology textbooks as established knowledge. In this paper, I examine the reasons why it was accepted as part of a series of (...) comparative studies of theory-acceptance in the sciences. In this context it is of interest to look at the persuasiveness of confirmed novel predictions, a factor often regarded by philosophers of science as the most important way to justify a theory. Here it turns out to play a role in the decision of some geneticists to accept the theory, but is generally less important than the CTH's ability to explain Mendelian inheritance, sex-linked inheritance, non-disjunction, and the connection between linkage groups and the number of chromosome pairs; in other words, to establish a firm connection between genetics and cytology. It is remarkable that geneticists were willing to accept the CTH as applicable to all organisms at a time when it had been confirmed only for Drosophila. The construction of maps showing the location on the chromosomes of genes for specific characters was especially convincing for non-geneticists. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS 125 to such a future contingent event, not only does such an event not exist now, it does not even exist in its causes now, and this for the reason that no sufficient causes of the event exist now. Accordingly, if someone were merely to make a guess to the effect that the sea-fight will occur tomorrow, and the fight actually does occur, it still could not (...) be maintained that the original guess at the time it was made was therefore true. It simply could not have been true, because at the time of its assertion there literally was no evidence of any kind that could have rendered it true. Nevertheless, modern logicians have generally been so dead set against the notion that the truth or falsity of a proposition could ever be relative to the time when the proposition was uttered that they seem scarcely to have taken account of a consideration such as the foregoing. Nor is it likely that with the publication of this excellent translation of St. Thomas's commentary, such critics will begin to take account of this Thomistic argument even now. Somehow, one is reminded of Dr. Johnson's purported remark, "Sir, I can only give a man a reason, not an intelligence!" HENRY VEATCtt Northwestern University Pascal e Nietzsche. Scritti di E. Castelli, H. Gouhier, A. del Noce, H. Birault, K. Takeno, K. LSwith, J. D~lhomme, G. Vattimo, R. Boehm, G. Morra. (Padova: Cedam; Casa Editrice Dott. Antonio Milani, 1962. Pp. 218. = Archivio di Filosofia. Organo dell'Istituto di Studi Filosofici. Anno 1962. No 3. L. 2000.) This issue of the Archivio di Filosofia offers essays by the various authors indicated in the title above. Pascal and Nietzsche are here brought together because of what they have in common, that is, suffering, restlessness, dissatisfaction with the human condition, the historical sorrow of post-Copernican man, a paradoxical and chaotic thought. Both Pascal and Nietzsche urge man to measure the real by the possible and not the possible by the real and to risk the present certainties for the uncertainty of the future. They dislodge man from his ordinary seat and launch him on the risky adventure and great experiment of real existence. PA~L T. FUHRMANN Columbia Theological Seminary Pierre Bayle and Voltaire. By H. T. Mason. (Cambridge: Oxford University Press, 1963. Pp. xv -k 163.) Pierre Bayle and Voltaire confronts the ideas of the two philosophers and formulates some prudent conclusions about their relationship. Since Bayle's works run to nine long folio volumes and Voltaire's come to fifty quartos in the Moland edition, one cannot help but be impressed by the magnitude of Professor Mason's undertaking and by his ability to reduce his findings to a book of just over one hundred and fifty pages. In the case of Bayle and Voltaire, the basic facts concerning influence are readily available. We know what works of Bayle's were in the library at Ferney; we can see the pages the Enlightenment philosopher marked as he read; we have almost two hundred references to Bayle in Voltaire's works and letters (listed chronologically by Mason in an appendix); and critical editions, such as Morize's Candide and Lanson's Lettres philosophiques, have disclosed how consistently Voltaire turned to the Dictionnaire historique et critique or other works from Bayle's pen for information. Yet, when dealing with passages that seem to rely on Bayle for factual content, a scholar runs into many hazards. Voltaire may draw his data from Bayle, from Bayle's source, from an intermediary, or from an outside source. We know that he consulted Richard Simon, Spinoza, Dora Calmet, and Dr. Astruc as well as Bayle for his Biblical criticism. Therefore, it is very frequently impossible to be sure just how much Bayle's thinking 126 HISTORY OF PHILOSOPHY contributed to the philosophe'~. Professor Mason, while continually aware of this Uncertainty, lists the numerous cases he has found where Voltaire's source may be Bayle. More significant, of course, are Bayle's seminal ideas and their role in the formation of Voltaire's intellect. The bulk of this book is devoted to chapters on "the... (shrink)

When Heidegger's influence was at its zenith in Germany from the early fifties to the early sixties, most serious students of philosophy in that country were deeply steeped in his thought. His students or students of his students filled many if not most of the major chairs in philosophy. A cloud of reputedly Black Forest mysticism veiled the perspective of many of his critics and admirers at home and abroad. Droves of people flocked to hear lectures by him that most (...) could not understand, even on careful reading, much less on one hearing. He loomed so large that Being and Time frequently could not be seen as a highly imaginative, initial approach to a strictly limited set of questions, but was viewed either as an all-embracing first order catastrophy incorporating at once the most feared consequences of Boehme, Kierkegaard, Rilke, and Nietzsche, or as THE ANSWER. But most of that has past. Heidegger's dominance of German philosophy has ceased. One can now brush aside the larger-than-life images of Heidegger, the fears that his language was creating a cult phenomenon, the convictions that only those can understand him who give their lives to his thought. His language is at times unusually difficult, at times simple and beautiful. Some of his insights are obscure and not helpful, others are exciting and clarifying. One no longer expects Heidegger to interpret literature like a literary critic or an academic philologist. (shrink)

For twenty years, the renowned philosopher of science Sandra Harding has argued that science and technology studies, postcolonial studies, and feminist critique must inform one another. In The Postcolonial Science and Technology Studies Reader, Harding puts those fields in critical conversation, assembling the anthology that she has long wanted for classroom use. In classic and recent essays, international scholars from a range of disciplines think through a broad array of science and technology philosophies and practices. The contributors reevaluate conventional accounts (...) of the West’s scientific and technological projects in the past and present, rethink the strengths and limitations of non-Western societies’ knowledge traditions, and assess the legacies of colonialism and imperialism. The collection concludes with forward-looking essays, which explore strategies for cultivating new visions of a multicultural, democratic world of sciences and for turning those visions into realities. Feminist science and technology concerns run throughout the reader and are the focus of several essays. Harding provides helpful background for each essay in her introductions to the reader’s four sections. Contributors Helen Appleton Karen Bäckstrand Lucille H. Brockway Stephen B. Brush Judith Carney Committee on Women, Population, and the Environment Arturo Escobar Maria E. Fernandez Ward H. Goodenough Susantha Goonatilake Sandra Harding Steven J. Harris Betsy Hartmann Cori Hayden Catherine L. M. Hill John M. Hobson Peter Mühlhäusler Catherine A. Odora Hoppers Consuelo Quiroz Jenny Reardon Ella Reitsma Ziauddin Sardar Daniel Sarewitz Londa Schiebinger Catherine V. Scott Colin Scott Mary Terrall D. Michael Warren. (shrink)

“ The doubtful story of successive events.” With this contemptuous phrase1 Bernard Bosanquet brushed aside the claim of history to be considered a study deserving the attention of a thoughtful mind. Unsatisfactory in form, because never rising above uncertainty; unsatisfactory in matter, because always concerned with the transitory, the successive, the merely particular as opposed to the universal; a chronicle of small beer, and an untrustworthy chronicle at that. Yet Bosanquet was well read in history; he had taught it as (...) a young man at Oxford, and his first published work had been a translation of a recent German book on the Athenian constitution; he knew that a vast amount of the world's best genius in the last hundred years had been devoted to historical studies; and when, late in life, he asked himself what it came to, that was all he could say. (shrink)

Historian of science Edward Grant believed that, by counting and classifying the uses of theological terms in commentaries on some of Aristotle’s natural books, he could show that medieval natural philosophy had no theological agenda. But his broad-brush approach may not reveal differences in the way individual authors used theological terms. A census of such terms in the De anima commentaries of John Buridan and Nicole Oresme undertaken in this paper suggests that Buridan was more mindful of theological scrutiny (...) of the Arts faculty than Oresme, perhaps because Buridan’s career began when the effects of the Condemnation of 1277 were more strongly felt than they were a generation later when Oresme began to teach. (shrink)

First published in 2005. Routledge is an imprint of Taylor & Francis, an informa company.

The problem of psychological pain caused by discussions of do not resuscitate status with patients is addressed. Case histories of patients with such distress are given. We propose that not all patients should be informed of their do not resuscitate status, that the information about such status be given incrementally, and that the giving of further information be guided by the patient's reaction to earlier information. While some affirm the duty of the physician always to inform the patient about his (...) or her do not resuscitate status, we affirm the duty of the physician to determine whether the patient wishes to enter into this discussion. (shrink)

A layman's guide to the mechanics of Gödel's proof together with a lucid discussion of the issues which it raises. Includes an essay discussing the significance of Gödel's work in the light of Wittgenstein's criticisms.

Intuitionistic logic is presented here as part of familiar classical logic which allows mechanical extraction of programs from proofs. to make the material more accessible, basic techniques are presented first for propositional logic; Part II contains extensions to predicate logic. This material provides an introduction and a safe background for reading research literature in logic and computer science as well as advanced monographs. Readers are assumed to be familiar with basic notions of first order logic. One device for making this (...) book short was inventing new proofs of several theorems. The presentation is based on natural deduction. The topics include programming interpretation of intuitionistic logic by simply typed lambda-calculus (Curry-Howard isomorphism), negative translation of classical into intuitionistic logic, normalization of natural deductions, applications to category theory, Kripke models, algebraic and topological semantics, proof-search methods, interpolation theorem. The text developed from materal for several courses taught at Stanford University in 1992-1999. (shrink)

Abstract Philosophical discussion of Alan Turing’s writings on intelligence has mostly revolved around a single point made in a paper published in the journal Mind in 1950. This is unfortunate, for Turing’s reflections on machine (artificial) intelligence, human intelligence, and the relation between them were more extensive and sophisticated. They are seen to be extremely well-considered and sound in retrospect. Recently, IBM developed a question-answering computer (Watson) that could compete against humans on the game show Jeopardy! There are hopes it (...) can be adapted to other contexts besides that game show, in the role of a collaborator of, rather than a competitor to, humans. Another, different, research project --- an artificial intelligence program put into operation in 2010 --- is the machine learning program NELL (Never Ending Language Learning), which continuously ‘learns’ by ‘reading’ massive amounts of material on millions of web pages. Both of these recent endeavors in artificial intelligence rely to some extent on the integration of human guidance and feedback at various points in the machine’s learning process. In this paper, I examine Turing’s remarks on the development of intelligence used in various kinds of search, in light of the experience gained to date on these projects. (shrink)

Twenty years ago in "Turing's Two Tests for Intelligence" I distinguished two distinct tests to be found in Alan Turing's 1950 paper "Computing Machinery and Intelligence": one by then very well-known, the other neglected. I also explained the significance of the neglected test. This paper revisits some of the points in that paper and explains why they are even more relevant today. It also discusses the value of tests for machine intelligence based on games humans play, giving an analysis of (...) some twentieth century TV game shows and how they relate to the tests for machine intelligence in Turing's paper and in some other tests for machine intelligence that have been proposed since. Their value in distinguishing between 'wise' and simply ‘clever’ AI is discussed. (shrink)