We argue that the Aharonov-Anandan-Vaidman model, by using the notion of so-called “protective measurements,” cannot claim to have dispensed with the ldcollapse of the wave function,” because it does not succeed in avoiding the quantum measurement problem. Its claim to be able to distinguish between two nonorthogonal states is also critically examined.

It may be seen, then, that if one was prepared to accept the existence of insulating sheaths on the nerves, all the arguments raised against the proposed identification of the nervous and electrical fluids, except one, could be answered satisfactorily. The single exception involved the question of how an electrical disturbance in the brain could be confined to a single nerve, and, as was indicated earlier, it was scarcely fair to hold this sort of objection against the electrical theory alone. (...) In that case, there remained no convincing argument to show why one should not accept the identification of the two fluids. On the other hand, of course, it remained an open question as to whether there was any convincing argument to show why one should accept the identification either. Galvani thought that his experiments provided just such an argument. (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)

We review the present status of wave-particle duality of single-photon states in the context of some recent experiments. In particular, Bohr's complementarity principle is critically reexamined. It is explained in detail how this principle is confronted in these experiments and how a contradiction with the notion of “mutual exclusiveness” of classical wave and particle pictures emerges.

Discussions on the nature of reality between Albert Einstein and Rabindranath Tagore, Bengali poet, philosopher and Nobel laureate, have provoked interest among both physicists and philosophers since their first publication in 1930/31. This article points out their relevance to past and present debates about the meaning of quantum mechanics.

In 1914, the physics discipline had reached a very similar stage of development in Australia and Japan. A generation later the paths of development had considerably diverged. A systematic comparison of the evolution of physics in the two countries during these years identifies factors—political, economic and cultural—that led to this divergence, but it also uncovers a number of underlying parallels.

We argue that the inference of CP violation in experiments involving the K0-K0 system in weak interactions of particle physics is facilitated by the assumption of particle trajectories for the decaying particles and the decay products. A consistent explanation in terms of such trajectories is naturally incorporated within the Bohmian interpretation of quantum mechanics.

In this article we attempt to bring out some significant general aspects of what we call collapse-induced quantum nonlocal effects resulting from the use of the hypothesis of wave function collapse.

A number of papers on wave-particle duality has appeared since the two-prism experiment was performed by Mizobuchi and Ohtake, based on a suggestion by Ghose, Home, and Agarwal. Against this backdrop, the present paper provides further clarification of the key issues involved in the analysis of the two-prism experiment. In the process, we present an overview of wave-particle duality vis-a vis Bohr's complementarity principle.

Leonhard Euler was the leading eighteenth-century critic of Isaac Newton's projectile theory of light. Euler's main criticisms of Newton's views are surveyed, and also his alternative account according to which light is a wave motion propagated through the aether. Important changes are identified as having occurred between 1744 and 1746 in Euler's thinking about the way in which a wave such as he supposed light to be is propagated through a medium. Paradoxically, in view of Euler's overtly anti-Newtonian stand, these (...) amount to Euler abandoning his early, Malebranchian notions about the physical basis of wave propagation, in favour of the ideas set out by Newton in Book II of his Principia. (shrink)

We tend to think that a person who is both reasonable and moral can have a good life. What constitutes a life that is not only good but superlative, or even “marvellous” or “holy”? Those who have such lives are called sages, heroes or saints, and their lives can display great integrity as well as integration with a transformative “Spiritual Presence.” Does it follow that saints are perfect people? Is there a common vision that impels them to seek holiness? In (...) a controversial interpretation of mysticism Horne suggests that there is no single formula for the meaning of life and no one story that displays it to us. Mysticism, rather than being just a visionary perception, then becomes a problem-solving process that brings about a creative transformation of the personality at a critical stage in life. He suggests also that saints may be imperfect morally and describes true saints as double-minded: they are serious in a playful way. Mysticism and Vocation illuminates our understanding of saintly lives by explicating their mystical characteristics and extending discussions of mysticism to explain its role in active lives. In discussing important decisions that go beyond conventional morality, it adds to recent philosophical arguments by Charles Taylor, Alasdair MacIntyre, Iris Murdoch, Bernard Williams and others to the effect that morality should be defined more broadly to deal with the human condition. This book will be of interest to students of philosophy and religious studies, in both graduate and undergraduate programs. (shrink)

Mysticism is condemned as often as it is praised. Much of the condemnation comes from mysticism’s apparent disregard of morality and ethics. For mystics, the experience of “union” transcends all moral concern. In this careful examination of the works of such practitioners or examiners of mysticism as Paul Tillich, Thomas Merton, Evelyn Underhill, and Martin Buber, the author posits a spectrum of uneasy relationships between mysticism and morality. Horne explores the polarities of apophatic (imageless) and imaginative mysticism, the contemplative and (...) the active life, and morality and amorality. He stresses the importance of the distinction between “proper-name” (entirely personal) morality and “social” morality, for the history of Christian mysticism is a mix of minimal moral concern, proper-name morality, and social morality. The volume will be of interest to students of religious experience, ethics, and the recent history of mysticism. Carefully reasoned and documented, the argument is couched in clear prose, easily accessible to lay readers as well as to scholars. (shrink)