MATTER AND LIGHT The New Physics By LOUIS DE BROGLIE. Originally published in 1937. TRANSLATORS NOTE: THE Author has in certain places modified the original French text for the English translation, for the sake of greater cohesion, and has also revised some passages, in order to bring them into accord with the results of later research. Occasional Translators Notes are shown in square brackets. The chapter on The Undulatory Aspects of the Electron has the special historical interest of having been (...) delivered as a Lecture on the occasion of the Authors receipt of the Nobel Award, while that on Wave Mechanics and its Interpretations was given as an Address at the Glasgow meeting of the British Association in 1928. I am indebted to Dr. J. E. Turner, of the University of Liver pool, for assistance with the translation and the proofs, and to Dr. C. Strachan, of the same University, I am indebted for valuable assistance in dealing with the equations and the more technical passages, as well as for reading the proofs. W. H. J. PREFACE: THE amiable insistence of my friend Andr George has induced me to collect in the present Volume a number of Studies on con temporary Physics written from both the general and the more metaphysical point of view. Each of these Studies forms an inde pendent whole, and can be read by itself. A slight degree of repeti tion which the reader is asked to overlook has been the inevi table result for on more than one occasion I have been compelled to duplicate a summary of the great fundamental stages of con temporary Physics, such as the classification of simple substances, the investigation of the photo-electric effect and the origin of the Theory of Light Quanta and of Wave Mechanics the subjects are somewhat technical, and I cannot well assume that they are common knowledge. But though the same subject is outlined in several of these Studies, I have tried to take up a different point of view in each, and have endeavoured to throw light on different aspects of the essential problems of Quantum Physics in order to facilitate a grasp of their importance. On comparing the different chapters the reader will observe that, while overlapping, they also complement one another and he will feel the fascination and greatness inherent in the vast structure of modern Physics. And while admiring the vast number and the extreme delicacy of experimental facts which laboratory physicists have succeeded in revealing, and the strange and brilliant concepts devised by theorists to explain them, he will appreciate to what a degree the methods and ideas of physicists have grown in subtlety during recent years, and how great has been the progress from the somewhat ingenuous Realism and the over-simplified Mechanics of earlier thinkers. The more deeply we descend into the minutest structures of Matter, the more clearly we see that the concepts evolved by the mind in the course of everyday experience especially those of Time and Space must fail us in an endeavour to describe the new worlds which we are entering. One feels tempted to say that the outlines of our concepts must undergo a progressive blurring, in order that they may retain some semblance of relevance to the realities of the subatomic scales. Time and Space, in other words, are too loose a dress for the elementary entities individuality becomes attenuated in the mysterious pro cesses of interaction, and even Determinism, the darling of an older generation of physicists, is forced to yield... (shrink)

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in (...) the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Philosophical Basis of RhetoricHenry W. JohnstoneI want to begin by distinguishing between what has a philosophical basis at all and what has none. Science, history, morals, and art have a philosophical basis. Fishing, tennis, needlecraft, and carpentry do not. The criterion that determines membership in each list is simple: an activity has a philosophical basis if, and only if, the practice of it distinguishes man from the animals. (...) It must be disqualified on the ground that some animals, as well as men, fish. It might be argued, however, that there is an art of fishing requiring tools utilizable by man alone, and that the ability to fish in this way distinguishes man form the animal. To be sure, in some cultures fishing with appropriate tools is necessary. In others, carpentry is. But if we came across a culture in which fishing did not occur, we would not say, "This creature does not fish; hence he is not a man'; and the same for carpentry. It may seem that the same question arises for science and history. Not all cultures are scientific. If science is indeed, as I maintain, necessary for men, what then prevents us from visiting some primitive tribe and saying, "These creatures have no science; hence they are not men"? The answer is that the culture we have encountered is prescientific. Even though its participants have at the moment no science, science is somehow "in the cards" for them. We would not characterize the nomads of Afghanistan as being in a pre-fishing era. We would not say that fishing was in the cards for them. Of course if the desert should become a sea, they will become fishermen, and there will have been a pre-fishing era. But it is not necessary to the character or status of the nomad that he represent either a pre-fishing or a fishing, or, for that matter, a post-fishing era. It is not necessary for man, however, that he be either prescientific man or scientific man or postscientific man. I add the last rubric to accommodate not only the tragic possibility of a cataclysm that could wipe out all humans capable of maintaining the tradition of science but also the ironic possibility that man might some day simply turn away from science. In either eventuality, man would be essentially characterized as a being living in a [End Page 15] postscientific era; that is, not merely as a being bereft of science, but as a being living a life either oriented to the cataclysm that had shattered the tradition of science or else oriented to the conviction that science is a thing of the past. The non-fishing nomad, on the other hand, need not take any position at all with regard to the nature or value of fishing. The possibility of fishing need receive no mention in any characterization of him.The principle I have roughly stated and exemplified implies that if rhetoric has a philosophical basis, it is necessary to man, in the sense that all men live in either a pre-rhetorical culture, or a rhetorical culture, or a post-rhetorical culture. Each of these cultures is characterized by a disposition toward rhetoric. In the pre-rhetorical era, even though man does not engage in any form of rhetoric that we can recognize, we can see rhetorical activity as in the cards for him. Perhaps someone will object that there never has been such an era; as long as man has existed, he has engaged in rhetoric. So much the better for my argument; for then it is all the more clearly the case that rhetoric is necessary to man. But if man has gone through a pre-rhetorical phase, he is distinguished form all nonhuman creatures in this respect. No one would say of rats, cats, or cows that they are not yet engaged in rhetoric, but that once the idea occurs to them they will be. But man is either rhetorical from the outset or fated to become so once a certain idea dawns upon him—this, at any rate, is what anyone would be claiming who asserted that rhetoric has a... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:246 HISTORY OF PHILOSOPHY f~ntlSetifr ~uftanbebrtn~en, [o,ba{~hie @i~e~t heeler~anbluu~ ~uaIet~ bee ~[u~e[t bee ~emu~tfein~ (~m ~e~riffe eiuer ~inie)i[t, u,b baburd~a[rerer[t em Dbieft (el, be[timmter ~a,,m) erfannt r0irb.") The notion of constructing a concept is a technical one for Kant ("r ~e@rlffabet f on ft r u i r en, beiflt: hie i~m focre[p0nblereube ~In [ c @a u u,@ a ~ c i o ~i bar[tdlen." Op. cit., B741)--to (...) construct a concept of space would be to produce a representation of a determinate region of space in accordance with some determining principle. 9Maimon, Salomon (1753-1800): Self-educated philosopher from Lithuania who appeared on the Berlin scene in the later 1780's. His Versuch ~ber die Transzendentalphilosophie (1790) was a critical study of the Kritik der reinen Vernunft; Kant had already seen some of it in manuscript, sent to him by Marcus Herz. In his letter of May 26, 1789 (~362), he describes to Herz how he had been on the point of returning the manuscript unread, with a note saying that he was too busy, but that on glancing at it he had realized its quality and had seen that none of his opponents had understood the Kritilc as well as had M. u Herz, Marcus (1747-1803): Student and subsequently close friend of Kant's. Medical doctor and, from 1786, Professor of Philosophy in Berlin. i Selle, Christian Gottlieb (1748-1800) : Medical doctor in Berlin, involved in experiments in animal magnetism. Kiesewetter regarded the experiments as fraudulent, but absolved S. of complicity. J Berlinische Monatr A liberal journal, founded in 1783, in which Kant frequently published. The editor in question was Johann Erich Biester (1749-1816), who was also Librarian of the Royal Library inBerlin. k Elsner, Christoph Friedrich (1749-1820): Professor of Medicine at K6aigsberg, who attended Kant in his final illness. A FURTHER NOTE ON PAUL MARHENKE'S "THE PHENOMENALISTIC INTERPRETATION OF KANT'S THEORY OF KNOWLEDGE" IN AN INTRODUCTORY NOTE to a paper, "The Phenomenalistic Interpretation of Kant's Theory of Knowledge," which was found in the effects of the late Paul Marhenke, Professor of Philosophy at the University of California, Berkeley, and which was printed in the April, 1964 issue of this Journal I mentioned that an intensive inquiry failed to reveal when this paper was written or for what occasion. I have recently received a note from Professor Jacob Loewenberg, Professor Emeritus in the Department of Philosophy at Berkeley, informing me that the paper was written while Paul Marhenke was a student at Berkeley and was written for Professor Loewenberg's Seminar on Kant, during the session of 192526. Professor Loewenberg writes that "the seminar dealt with certain selected topics crucial in or growing out of the Critique of Pure Reason. Among those who in addition to Paul were in the seminar, I remember distinctly (largely because of their superior performance) Donald C. Williams and the late A. P. Ushenko. I am not quite sure whether or not Philip Wiener was also enrolled." University o] California, San Diego A YRD-~[STROLL A I~EPLY TO WALTER KAUFMANN WALTER KAUFMANN,in his article, "Nietzsche in the Light of his Suppressed Manuscripts" 1 converts a review of Erich F. Podach's book, Friedrich Nietzsche's 1This Journal, II, 2 (Oct., 1964), pp. 205-225. NOTES AND DISCUSSIONS 247 Werke des Zusammenbruchs into a bitter personal attack on Podach and an even more vitriolic assault on me. Every author and scholar is entitled to his own opinion, and had Kaufmann soberly stated his case by simply announcing that, to his mind, the re-editing of Nietzsche's works according to the genuine manuscripts now available in Weimar has not changed one iota of the true character of the philosopher's last books, then his efforts would certainly have been unexceptionable. Prof. Kaufmann could simply have said, "Much ado about nothing! Podach's findings will, by no means, alter the image of Nietzsche among philosophers. Period." Indeed, this is precisely what Kaufmann's elaborate tirades and invectives come to if one reduces them to their... (shrink)

The purpose of this note is to present a set of rules for the syllogism which not only is equivalent with the set ordinarily used, but also is the dual of the latter. It must be emphasized, however, that the discussion of both of these sets presupposes the hypothetical interpretation of universal propositions, and would not hold true of the existential interpretation of such propositions. A universal proposition is interpreted hypothetically, rather than existentially, when it is not assumed that the (...) class denoted by its subject must have members. Thus the hypothetical interpretation of “All unicorns are mammals” would be just “If anything is a unicorn, then it is a mammal—but it is not necessarily true that unicorns exist.” One important consequence of the distinction between these two modes of interpretation is that rule 3, below, is true for the hypothetical interpretation, but not for the existential. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:488 HISTORY OF PHILOSOPHY most extensive study of this aspect of Schelling's thought, at least until 1806. However, even if Schelling was not, as it is frequently stated, indifferent to the problems and the vicissitudes of politics, his theoretical thinking on this subject never went beyond temporary systematizations, to be given up, or modified, after a while. The author shows how Schelling, especially in this fieM, was influenced either (...) by his environment in general, or by some personalities he happened to contact: first his "republican" and francofile friends of the Ttibingen Stilt, afterwards the romantic circle of Jena, and, between 1801 and 1803, Hegel. The author studies in his first chapter, devoted tO the non-philosophic writings of the TUbingen period (1790-1795), not only Kant's and Herder's influence on Schelling, which are usually taken for granted, but also the impact of C. G. Heine and of other GSttingen scholars. This is a stimulating suggestion, showing the need for a more detailed study on the diffusion of the "historicocritical" method in circles, as the Ttibingen school, dominated rather by philosophical and theological than by philological and historical interests. In the following chapters, Schelling is closely related again to the intellectual history of his time; Schelling's relationship to the Aufkliirer Nicolai produces some surprises, and the same may be said about some new particulars (implementing F. Rosenzweig's and F. Bthm's research) on the close connection between Schelling and Htlderlin in 1795-1796. The fourth chapter is devoted to the correlation between theories on "natural philosophy" and moral political theories. The fifth concerns the philosophy of history and of government. This remarkable study, founded on sound scholarship, and conducted with a sharp historical mind, is to be recommended not only to students of Schelling, but to all those who have some interest in early XIXth Century German political thought. GIORGIO TONELLI State University of New York at Binghamton Gesammelte Werke, Vol. IV. By Georg Wilhelm Friedrich Hegel. Ed. Hartmut Buehner and Otto Ptggeler. (Hamburg: Felix Meiner, 1968. Pp. 622. DM 86.00) Despite the high reputation Germany has long enjoyed with regard to its scientifically reliable editions, up to this very moment, a historic-critical edition of the totality of Hegel's works has not existed. There were only provisional texts of single works available whose philological reliability differed in its sometimes doubtful variety. This is a rather strange fact, considering that Hegel died in 1831. It can be explained only by a phenomenon peculiar to this philosopher: at the peak of his fame, numerous students from all countries of the world attended Hegel's lectures, assiduously taking notes and frequently publishing as authentic what they had understood and jotted down. The philosopher was very generotis in authorizing various versions of his lectures and thus, the international market was swamped with quite incongruous editions of some of his writings at the moment of Hegel's death. Despite this rather confused state of affairs, distinguished scholars have tried, for BOOK REVIEWS 489 more than six decades, to bring order into the posthumous manuscripts of the philosopher, and these efforts were successful, but only to a certain extent. Next to the pioneering publications of Wilhelm Dilthey, Herman Nohl and Frans Rosenzweig, lesser known savants, in the first place, Georg Lasson and Johannes Hoffmeister have devoted many years of self-denying efforts to make /mportant parts of Hegel's manuscripts available to the public and looked for new possibilities to edit the large body of lectures. But the task proved too difficult for individual scholars. For this reason, the Deutsche Forschungsgemeinschaft, a government-sponsored organization, has commissioned the publication of an all-encompassing historic-critical edition of Hegel's works and arranged for the appointment of a senatorial commission for advising the editors of such a mammoth undertaking. Members of the commission were the aforementioned scholars (see title) and W. Wieland. The Ministry of Education of the State of Nordrhein-Westfalen has opened a research center, originally directed by F. Nicolin, since 1968 by O. Ptggeler. Thus the edition can now be published continuously. Before discussing the contents of volume four, the only volume hitherto published, let's take... (shrink)

An analysis of effectiveness of some of hume's arguments in a framework developed by the author. The author states his position that arguments attacking positions attempt to show that, Given the assumptions of a position, Certain consequences are incompatible with it--A valid species of "argumentum ad hominem". Although this species does not work for constructive philosophical "proofs," it will work inversely in arguments (defending such proofs) which cite possible objections. These charge "petitio": the objection assumes what the position denies or (...) "vice versa". Eight arguments are judged as "ad hominem" or as charging "petitio" and as effective or ineffective in either case. The analyses elaborate the author's position, And the mode of analysis is suggested as an adjunct to considering a philosopher's conclusions. (shrink)