This book traces the evolution of the ideas that eventually resulted in the elementary quantum theory in 1925/26. Further, it discusses the essential differences between the fundamental equations of Quantum Theory derived by Born and Jordan, logically comprising Quantum Mechanics and Quantum Optics, and the traditional view of the development of Quantum Mechanics. Drawing on original publications and letters written by the main protagonists of that time, it shows that Einstein's contributions from 1905 to 1924 laid the essential foundations for (...) the development of Quantum Theory. Einstein introduced quantization of the radiation field; Born added quantized mechanical behavior. In addition, Born recognized that Quantum Mechanics necessarily required Quantum Optics; his radical concept of truly discontinuous and statistical quantum transitions ("quantum leaps") was directly based on Einstein's physical concepts. (shrink)

Herbert Spencer, Victorian philosopher, biologist, sociologist and political theorist, one of the founders of Social Darwinism and author of the phrase 'survival of the fittest', was nominated for the Nobel Prize for Literature in 1902, losing out to Theodor Mommsen. Spencer left his post at The Economist in 1857 to focus on writing his ten-volume System of Synthetic Philosophy, a work that offers an ethics-based guide to human conduct to replace that provided by conventional religious belief. Published in 1879, (...) this volume seeks to demonstrate that social evolution tends towards greater individualism, altruism and co-operation. Spencer argues that it is possible to establish rules of right conduct on a scientific basis, and declares that this work is the culmination of his life's study. He was anxious to publish it outside the planned order of the System, because he feared that his death would prevent its completion. (shrink)

(1993). Reply to Ernhart, Scarr, and Geneson. Ethics & Behavior: Vol. 3, No. 1, pp. 95-101.

The regularization of chiral gauge theories is reviewed from the “overlap” point of riew. This is a brief and biased review containing no references.

The edition of the Nachlass from the early thirties by Michael Nedo and the completion of the "Bergen Electronic Edition" (BEE) have provided Wittgenstein scholars with all the material required to investigate the author's philosophical development starting with his auto-criticism of the "Tractatus" and leading to his later views. Wittgenstein's strategy of dictating from his notebooks and cutting up the typescripts to rearrange paragraphs into sequences of remarks is well documented in Nedo's edition and the BEE provides convenient facsimile access (...) to every page Wittgenstein wrote or edited throughout the process. Some researchers have begun to revise received opinions that were based upon the "books" previously published by the trustees. (Hrachovec 2002, 2004, Kientzler 1997, Nyiri 2002, Pichler 2004, Stern 2002) Yet, the scientific community has barely begun to discover the richness and density of the philosophical endeavor manifesting itself in this material. There has, understandably, been an interest to trace the origin of remarks, well-known from the "Philosophical Investigations", providing some background to Wittgenstein's most popular ideas. Various doctrines of what is becoming known as the "middle Wittgenstein" have been noticed, but they have themselves been perceived as more or less consolidated theories. Wittgenstein's editorial activity has been recognized as a hypertextual undertaking avant la lettre, yet there has been insufficient attention to the philosophical impact of these hypertextual strategies themselves. It is all too easy to be caught by someprovisional result captured on a printed page and to overlook the fact that some of its philosophical significance can only be recognized by considering its genesis. (shrink)

The purpose of this note is to examine a recent axiomatization of classical particle mechanics, and its relation to an alternative axiomatization I had earlier proposed. A comparison of the two proposals casts some interesting light on the problems of operationalism in classical celestial mechanics.1. Comparison of the Two Axiomatizations. The basic differences between the two proposals arise from the nature of the undefined terms. Both systems take the set of particles, time, and position as primitive notions. Both systems assume (...) that there exists a set of particles having continuous, twice-differentiable paths over some time interval. In addition, CPM takes mass and force as primitive notions, and assumes that with each particle there is associated a mass and a set of forces such that Newton's Second Law is satisfied. A system with these properties is called in CPM “a system of particle mechanics.” If, in addition, the set of forces in the system satisfies Newton's Third Law, the system is called in CPM “Newtonian.”. (shrink)

Russell's 1913 manuscript Theory of Knowledge was not published until 1984. He supposedly abandoned the main part of the manuscript, while publishing the first six chapters as articles in The Monist, due to Wittgenstein's criticisms of his “multiple relation” analysis of belief. There have been numerous unsuccessful and erroneous attempts to interpret the manuscript, including those of D. Pears and G. Landini. The paper explores the Russell‐Wittgenstein “controversy” and shows the radical way Russell altered his earlier versions of his analysis (...) of belief and the connections the changes had to his new, and very important, analyses of relational order, of truth as correspondence, and of propositions. Russell's analysis of relational order reveals the first recognition by a correspondence theorist of a fundamental problem the correspondence theory faces as well as a long overlooked and unappreciated application Russell made of his theory of definite descriptions. (shrink)

Movement time and accuracy, as defined by Plamondon & Alimi, do not conform to empirical definitions. When definitions are used that conform better to empirical ones, the original predictions of the kinematic theory are no longer valid – as is demonstrated by simulations. Thus the theoretically derived quadratic law and the successful empirical quadratic law seem to be independent of each other.