Isidor von Sevilla sammelte in seinen Etymologien um 600 vorhandenes Wissen aus historischen und zeitgenössischen Quellen. Rund 300 Wörter aus dem Arbeitsbereich Textil werden mit Kurzkommentaren erläutert. Ca. 1050 findet sich dieses Wissen überarbeitet im Summarium Heinrici 1. Am Beispiel des Komplexes "Kleidung" liefert der Band neben den Quellen und hervorragenden Übersetzungen zum ersten Mal auch ausführlicheKommentare und Überblicksdarstellungen, die eine Fülle von Informationen bringen. Dazu gehören u. a. neue Erkenntnisse über Herstellung der griechischen, bombycina genannten, Seide oder die Beschreibung (...) der Vielzahl der Purpurfarben von Gelb und Himmelblau bis zum exklusiven Schwarz. (shrink)

Solov'ev (1853-1900) gilt als "der erste christliche Denker, der den individuellen und nicht nur den Gattungssinn der Liebe zwischen Mann und Frau anerkannte" (Berdjajev). Der bedeutendste russische Philosoph des 19. Jahrhunderts sieht in der Unbedingtheit des leidenschaftlichen Verlangens der sinnlichen Liebe ein Geschehen der unbedingten Anerkennung des geliebten Menschen - das Fundament der Ethik.

Considered by many to be Abraham Robinson's magnum opus, this book offers an explanation of the development and applications of non-standard analysis by the mathematician who founded the subject. Non-standard analysis grew out of Robinson's attempt to resolve the contradictions posed by infinitesimals within calculus. He introduced this new subject in a seminar at Princeton in 1960, and it remains as controversial today as it was then. This paperback reprint of the 1974 revised edition is indispensable reading for anyone interested (...) in non-standard analysis. It treats in rich detail many areas of application, including topology, functions of a real variable, functions of a complex variable, and normed linear spaces, together with problems of boundary layer flow of viscous fluids and rederivations of Saint-Venant's hypothesis concerning the distribution of stresses in an elastic body. (shrink)

Artificial intelligence (AI) and robotics are digital technologies that will have significant impact on the development of humanity in the near future. They have raised fundamental questions about what we should do with these systems, what the systems themselves should do, what risks they involve, and how we can control these. - After the Introduction to the field (§1), the main themes (§2) of this article are: Ethical issues that arise with AI systems as objects, i.e., tools made and used (...) by humans. This includes issues of privacy (§2.1) and manipulation (§2.2), opacity (§2.3) and bias (§2.4), human-robot interaction (§2.5), employment (§2.6), and the effects of autonomy (§2.7). Then AI systems as subjects, i.e., ethics for the AI systems themselves in machine ethics (§2.8) and artificial moral agency (§2.9). Finally, the problem of a possible future AI superintelligence leading to a “singularity” (§2.10). We close with a remark on the vision of AI (§3). - For each section within these themes, we provide a general explanation of the ethical issues, outline existing positions and arguments, then analyse how these play out with current technologies and finally, what policy consequences may be drawn. (shrink)

I argue that on Aristotle’s account practical thinking is thinking whose origin (archē) is a desire that has as its object the very thing that one reasons about how to promote. This feature distinguishes practical from productive reasoning since in the latter the desire that initiates it is not (unless incidentally) a desire for the object that one productively reasons about. The feature has several interesting consequences: (a) there is only a contingent relationship between the desire that one practically reasons (...) about how to satisfy and the action one decides on; (b) practical thinking and action cannot be separated from the agent, whereas productive thinking and production can be outsourced to someone else. The view has consequences also for the distinction between action and production. Finally, I illustrate the usefulness and correctness of my account of practical thinking by using it to shed new light on Aristotle’s claim that the virtuous agent must decide on her virtuous actions ‘for themselves’. (shrink)

In the spirit of B. C. van Fraassen's view of science called Constructive Empiricism, we propose a scientific criterion to decide whether a concrete object is observable, as well as a coextensive scientific-philosophical definition of observability, and we sketch a rigorous account of modal language occurring in science. We claim that our account of observability solves three problems to which current accounts of observability, notably van Fraassen's own accounts, give rise. We further claim that our account of modal propositions (subjunctive (...) conditionals included), which proceeds wholly within the framework of the semantic view on scientific theories, grounds his claim that such an account is possible without relying on ‘inflationary metaphysics’, notably without postulating an infinitude of different universes besides the universe we inhabit. We thus claim to solve a fourth problem: how to give a precise nominalist account of modal language in science tailor-made for Constructive Empiricism. Introduction: Rough Guides The semantic view and the wave theory of light A scientific guide and a scientific criterion A New Rough Guide and a definition The Context Problem and Psillos' Problem Musgrave's Problem Modality without inflationary metaphysics Exitum. (shrink)

In his 2009 PSA Recent Ph.D. Award winning contribution to the bi-annual PSA Conference at Pittsburgh in 2008, C. Wu ̈thrich mounted an argument against struc- turalism about space-time in the context of the General Theory of Relativity, to the effect that structuralists cannot discern space-time points. An “abysmal embarrass- ment” for the structuralist, Wu ̈thrich judged. Wu ̈thrich’s characterisation of space-time structuralism is however incorrect. We demonstrate how, on the basis of a correct char- acterisation of space-time structuralism, it (...) is possible to discern space-time points in the GTR-structures under consideration. Thus Wu ̈thrich’s argument crumbles. (shrink)

In recent years, tech evangelists have made headlines predicting that in the future manual driving will be outlawed. This essay will investigate the question whether a ban of human driven cars can be defended on moral grounds in a future scenario in which autonomous cars are going to be significantly safer than manually driven cars. This article will argue that in such a future scenario manually driven cars, for moral reasons, indeed should be banned from participating in regular traffic. Since (...) the moral argument for outlawing manually driven cars will likely be met by resistance by car-aficionados, in the final part of the paper, we are devising a proposal for reconciling the strong moral case for a ban of manually driven cars with the widespread fondness of manual driving. (shrink)

There is a wide range of things we do out of emotion. For example, we smile with pleasure, our voices drop when we are sad, we recoil in shock or jump for joy, we apologize to others out of remorse. It is uncontroversial that some of these behaviors are actions. Clearly, apologizing is an action if anything is. Things seem less clear in the case of other emotional behaviors. Intuitively, the drop in a sad person’s voice is something that happens (...) to her, rather than something she actively performs. Perhaps more interestingly, even jumping for joy can seem a problematic case: although its execution involves the active performance of certain movements, it has been argued to contrast, e.g., with an act of apology, in that it is not performed in order to achieve some end, such as repairing a relationship. This can make this behavior seem considerably different from paradigm actions. Our central concern in this paper is with which emotional behaviors should be classed as actions and why... (shrink)

The essay takes the widespread complaint that societies today are deeply divided and polarized as a starting point. Affirming that there is no democracy without division, it asks what it means for conflict and disagreement to be dealt with in a respectful and civil manner. As an illustration of the main argument, the way that liberals (in the broadest sense) have engaged with populist leaders is criticized on both a strategic and normative level. An alternative to existing strategies of dealing (...) with the conflict between liberals and populist is then proposed. Finally, the article also asks under what conditions civil disobedience might be an appropriate response to authoritarian populism. (shrink)

Paragraph 50 of Wittgenstein'sPhilosophical Investigationsfamously says that there is one thing of which one can neither state that it is 1 m long nor that it isn't: the standard metre in Paris. Consensus appears to be that (1) exegetically speaking, Wittgenstein affirms this claim, and (2) systematically, whether or not one agrees with it, the practice of using a material artefact as a measurement standard has important philosophical consequences. In this paper, in contrast, we show that (1') Wittgenstein does not (...) affirm the standard metre claim and (2') historical facts about material length standards do not warrant deeper philosophical conclusions. References to material measurement standards in the literature gravely distort the actual metrological practices of developing and using such standards. (shrink)

Political theorists tend to dismiss the concept of constitutional patriotism for two main reasons. On the one hand, constitutional patriotism — understood as a post-national, universalist form of democratic political allegiance — is rejected on account of its abstract quality. On the otherhand, it is argued that constitutional patriotism, while apprearing universalist, is in fact particular through and through. According to this genealogical critique, it is held that constitutional patriotism might have been appropriate in the context when it originated — (...) namely West Germany, a half-nation with a deeply compromised sense of nationality on account of the Nazi past — but it is not universally applicable. This article reconstructs the origins of constitutional patriotism arguing that both the ‘protective’ and state-centred patriotism of Dolf Sternberger, and the ‘purifying’ patriotism of Jurgen Habermas — focused mainly on the public sphere — can indeed be understood as relying on ‘supplements of particularily’. However, there are also normative connections between universalist constitutional morality and militant democracy on the one hand, and universalist constitutionalist morality and an imperative to remember on the other. Thus, the genealogical critique by itself is insufficient to invalidate the idea of constitutional patriotism. (shrink)

According to much recent work in metaethics, we have a perceptual access to normative properties and relations. On a common approach, this access has a presentational character. Here, ‘presentational’ specifies a characteristic feature of the way aspects of the environment are apprehended in sensory experience. While many authors have argued that we enjoy presentations of value properties, thus far comparatively less effort has been invested into developing a presentational view of the apprehension of normative reasons. Since it appears that this (...) view would offer much the same theoretical benefits as presentational views of the apprehension of value, it seems worthwhile redressing this imbalance. My paper aims at doing so, focusing on concern-dependent practical reasons. After clarifying the central commitment of this view, I assess a recent proposal by Dancy :787-812, 2014) which provides a detailed characterization of the relevant type of cognition. I argue that Dancy ignores one of the central features of a presentational access to normative reasons and therefore misidentifies which actual psychological phenomena are apt to play this role. In this context, I also assess and reject further candidates that might seem fitting for this purpose. In the remainder of the paper, I then offer a more adequate account which specifies an actual form of presentational access to concern-dependent practical reasons and provide the contours of a more substantive account of its nature. (shrink)

The reality of spirits? A historiography of the Akan concept of 'mind' (La réalité des esprits: Vers une historiographie de la conception akan de l'esprit). In this article the following thesis is considered: the classifications used to define African Indigenous Religions are 'inventions' of Western scholars of religion who employ categories that are entirely "non-indigenous". The author investigates the presumptions of this statement and discusses the work of scholars of religion studying the Akan and in particular the Akan concept of (...) mind. In the analytic philosophical tradition the precise meaning of Akan concepts of mind such as okra and sunsum, described by various scholars of religion in different eras, are reviewed. The pre-colonial, colonial and the postcolonial era all have had specific influence on the conceptualisation of the mind. On the basis of an historiography of the Akan mind the author concludes that, contrary to the originally thesis under review, 'cultural background' and 'academic discipline' are relatively unimportant in the classification of 'indigenous religions'. The 'paradigm' prevailing within a discipline , 'personal belief' and the spatio-temporal context in which conceptualisations are created, turn out to be far more significant. (shrink)

This volume seeks to further the use of formal methods in clarifying one of the central problems of philosophy: that of our free human agency and its place in our indeterministic world. It celebrates the important contributions made in this area by Nuel Belnap, American logician and philosopher. Philosophically, indeterminism and free action can seem far apart, but in Belnap’s work, they are intimately linked. This book explores their philosophical interconnectedness through a selection of original research papers that build forth (...) on Belnap’s logical and philosophical work. Some contributions take the form of critical discussions of Belnap's published work, some develop points made in his publications in new directions, and others provide additional insights on the topics of indeterminism and free action. In Nuel Belnap’s work on indeterminism and free action, three formal frameworks figure prominently: the simple branching histories framework known as "branching time;" its relativistic spatio-temporal extension, branching space-times; and the “seeing to it that” logic of agency. As those frameworks provide the formal background for the contributed papers, the volume introduction gives an overview of the current state of their development. It also introduces case-intensional first order logic, a general intensional logic offering resources for a first-order extension of the mentioned frameworks and a recent research focus of Belnap’s. The volume also contains an extended biographical interview with Nuel Belnap. (shrink)

Symptom Checker Applications (SCA) are mobile applications often designed for the end-user to assist with symptom assessment and self-triage. SCA are meant to provide the user with easily accessible information about their own health conditions. However, SCA raise questions regarding ethical, legal, and social aspects (ELSA), for example, regarding fair access to this new technology. The aim of this scoping review is to identify the ELSA of SCA in the scientific literature. A scoping review was conducted to identify the ELSA (...) of SCA. Ten databases (e.g., Web of Science and PubMed) were used. Studies on SCA that address ELSA, written in English or German, were included in the review. The ELSA of SCA were extracted and synthesized using qualitative content analysis. A total of 25,061 references were identified, of which 39 were included in the analysis. The identified aspects were allotted to three main categories: (1) Technology; (2) Individual Level; and (3) Healthcare system. The results show that there are controversial debates in the literature on the ethical and social challenges of SCA usage. Furthermore, the debates are characterised by a lack of a specific legal perspective and empirical data. The review provides an overview on the spectrum of ELSA regarding SCA. It offers guidance to stakeholders in the healthcare system, for example, patients, healthcare professionals, and insurance providers and could be used in future empirical research to investigate the perspectives of those affected, such as users. (shrink)

Intentio is a widespread concept in the writings of Thomas Aquinas (1224/5–1274). This article focuses on its use in the description and explanation of human action because Aquinas is the first author to elaborate a coherent conception of practical intentionality in the history of Western philosophy. The analysis shows that his account is characterized by five distinctive features: Practical intentionality is (1) an active striving toward a causally relevant intentional object (i. e., a goal), which is not ‘in the mind’, (...) (2) a volitional state of mind rather than a distinct mental event, (3) action-guiding because it is a principle of concrete human actions which realize it, (4) essentially tied up with rationality, which is needed for bridging the operational distance to the final goal by deliberation on the means conducive to it, (5) potentially complex – allowing for a plurality of simultaneous intentions – but at the same time unified in the hierarchical ordering of means and ends. The article also relates these features to modern discussions of intentionality in phenomenology and in analytic philosophy. (shrink)

Natural Religion is an unchanged, high-quality reprint of the original edition of 1892. Hansebooks is editor of the literature on different topic areas such as research and science, travel and expeditions, cooking and nutrition, medicine, and other genres.As a publisher we focus on the preservation of historical literature.Many works of historical writers and scientists are available today as antiques only. Hansebooks newly publishes these books and contributes to the preservation of literature which has become rare and historical knowledge for the (...) future. (shrink)

Band I der zweibändigen Nietzsche-Interpretationen enthält sowohl bisher unveröffentlichte wie auch ergänzte und stark erweiterte Abhandlungen zu dieser zentralen Thematik in Nietzsches Philosophie. In ihnen werden die wichtigsten Schritte der vom Verfasser vertretenen und viel diskutierten Interpretation des "Willens zur Macht" sichtbar. Die Prozesse "der" Willen zur Macht konstituieren den "absoluten Fluß" des Werdens; im Ja-sagen zu dessen ewiger Wiederkunft vollendet sich auch Nietzsches "Philosophie der Macht". Die Deutung des Werdens als "Wille zur Macht" ist entscheidend von der Nachlaß-Kompilation der (...) Schwester Nietzsches beeinflußt worden. Der letzte Beitrag des Bandes geht der Geschichte dieser Wirkung und den mit ihr verbundenen Mißverständnissen nach. (shrink)

In this article we critically reflect on ‘feminist research methods’ and ‘methodology’, from the perspective of a feminist research unit at a South African university, that explicitly aims to improve gender-based violence service provision and policy through evidence-based advocacy. Despite working within a complex and inequitable developing country context, where our feminist praxis is frequently pitted against seemingly intractable structural realities, it is a praxis that remains grounded in documenting the stories of vulnerable individuals and within a broader political project (...) of working towards improving the systems that these individuals must navigate under challenging social and structural conditions. We primarily do this by working with non-governmental organisations (NGOs) providing gender-based violence services in research conceptualisation, design and implementation. This raises unique and complex questions for feminist participatory research, which we illustrate through a case study of collaborative, participatory research with NGOs to improve health and criminal justice outcomes for survivors of sexual violence. Issues include the possibility of good intentions/good research designs failing; the suitability of participatory research in sensitive service provision contexts; the degree(s) of engagement between researchers, service providers (collaborators/participants) and research participants; as well as our ethical duties to do no harm and to promote positive, progressive change through personal narratives and other forms of evidence. Given the demands of our context and these core issues, we not only argue that there are no ‘feminist methods’, but also caution against the notion of a universal ‘feminist methodology’. Whilst we may all be in agreement about the centrality of gender to our research and analysis, the fundamental aims and assumptions of mainstream (Western) feminist approaches do not hold true in all contexts, nor are they without variance in mode, ideal degrees of participation and importance to social context. (shrink)

Goethes Protest gegen Newtons Theorie des Lichts und der Farben ist besser, als man gemeinhin denkt. Man kann diesem Protest in den wichtigsten Elementen folgen, ohne Newton in der physikalischen Sache unrecht zu geben. Laut meiner Interpretation hat Goethe in Newtons wissenschaftsphilosophischer Selbsteinschätzung eine entscheidende Schwäche aufgedeckt: Newton glaubte, mithilfe prismatischer Experimente beweisen zu können, dass das Licht der Sonne aus Lichtstrahlen verschiedener Farben zusammengesetzt sei. Goethe zeigt, dass dieser Übergang vom Beobachtbaren zur Theorie problematischer ist, als Newton wahrhaben wollte. (...) Wenn Goethe darauf beharrt, dass uns der Übergang zur Theorie nicht von den Phänomenen aufgezwungen wird, dann kommt dadurch unser eigener, freier und kreativer Beitrag zur Theorie-Bildung ans Tageslicht. Und diese Einsicht Goethes gewinnt eine überraschende Schärfe, weil Goethe plausibel machen kann, dass sich alle entscheidenden prismatischen Experimente Newtons aus der geometrischen Optik ebenso gut mit einer alternativen Theorie vereinbaren lassen. Wenn ich recht sehe, war Goethe der erste Wissenschaftsphilosoph, der mindestens eine empirisch äquivalente Alternative zu einer wohletablierten physikalischen Theorie gesehen und daraus weitreichende wissenschaftstheoretische Schlüsse gezogen hat: Damit war Goethe seiner Zeit um ein gutes Jahrhundert voraus. (shrink)

Powerviolence is a subgenre of hardcore music characterized by fast-paced rhythms, chaotic sound, and austere esthetics. Despite its seminal function for extreme music, there has been a notable lack of scholarly exploration into the genre. In this paper I draw on Comparative Philosophy to fill this gap. I argue that the powerviolence music and lyrics are fueled by anger. In Plato, anger serves as a tool for the irascible soul to support rational thinking and oppose injustice. Accordingly, I call for (...) a Platonic interpretation of powerviolence as an incentive for moral reformation in a world rife with violence and immorality. (shrink)

Aristotle tells us that in order to develop virtue, one needs to come to love and hate the right sorts of things. However, his description of the virtuous person clearly privileges love to hate. It is love rather than hate that is the main driving force of a good life. It is because of her love of knowledge, truth and beauty that the virtuous person organizes her life in a certain way and pursues these rather than other things (such as (...) pleasure). When hate comes into the picture, it is merely an unavoidable consequence of loving those noble and beautiful things. The virtuous person hates things that are contrary to her values, but does not concentrate on them, much less constructs her life in the pursuit of their destruction. But why privilege love over hate in this way? Why could not a good (happy) and virtuous life be a life driven primarily by hate (in particular, one aimed at eradicating what one (correctly) considers shameful and evil)? Without appealing to any consequences or harmful effects that hate might have on other People, the paper gives two answers to this question. First, allowing hate (rather than love) to dominate one’s life would undermine the right relationship between the two parts of the soul (the rational and the non-rational one) that Aristotle recognizes. Virtue involves establishing the right kind of internal ordering of one’s soul and this cannot be done if one’s soul is dominated by hate. Second, hate has negative cognitive effects insofar as it renders one insensitive to the beauty of human nature and behavior and actively precludes one from acquiring knowledge and understanding. Accordingly, if a good life is a life that involves virtue and knowledge, a life fueled by hate cannot but fall short of that ideal. (shrink)

In the case of Schmitt, much of recent scholarship in English has overlooked or even denied the radical conservatism of his Weimar writings. The approach pursued here will, I hope, put his works into more historically accurate perspective. In the case of both Freyer and Schmitt, their intellectual and rhetorical gifts helped undermine support for liberal democracy in Germany, and indeed were intended to do so; this paper, however, focuses on their social and political thought rather than on their influence.

Ich möchte den Neurowissenschaftlern, die glauben, mit empirischen Mitteln etwas über menschliche Freiheit herausfinden zu können, eine philosophische Herausforderung entgegensetzen. Meine These lautet: Die Frage nach der menschlichen Freiheit ist ein metaphysisches Problem, das sich empirischer Naturforschung entzieht. Um das zu begründen, werde ich ein extremes Gedankenexperiment durchführen. Ich werde zuerst hypothetisch die Situation eines Subjektes beschreiben, dessen Naturwissenschaft berechtigterweise einen durchgängigen kausalen Determinismus im Gehirn postuliert und dessen Libet-Experimente für all seine Handlungen fatal ausgehen (nicht nur für unbedeutende Handbewegungen). (...) Dann werde ich zeigen, dass die deterministische Neurowissenschaft in dieser gedachten Situation gar nichts für oder gegen die Entscheidungsfreiheit des Subjekts austrägt, weil sich die Entscheidungen des hypothetischen Subjekts nicht dort abspielen, wo seine Naturwissenschaft hinzielt. – Wenn es mir gelingt, so eine Situation zu konstruieren, stellt sich die Frage, ob wir nicht in einer ähnlichen Situation stecken könnten. Meiner Ansicht nach lässt sich diese Frage zwar aufwerfen, aber nicht beantworten. Sie gehört ins Reich der metaphysischen Spekulation, genau wie die Frage, ob unser geistiges Leben nach dem biologischen Tod im Jenseits weitergehen könnte. Ziel der Überlegungen ist es, verwirrende Redeweisen wie die von meta-physischer oder transzendentaler Freiheit durch konkrete Modelle verständlicher zu machen. Die Position, die hierbei herauskommen wird, hat einige Gemeinsamkeiten mit Kants Position zur Freiheit. (shrink)

Goethes Protest gegen Newtons Theorie des Lichts und der Farben ist besser, als man gemeinhin denkt. Man kann diesem Protest in den wichtigsten Elementen folgen, ohne Newton in der physikalischen Sache unrecht zu geben. Laut meiner Interpretation hat Goethe in Newtons wissenschaftsphilosophischer Selbsteinschätzung eine entscheidende Schwäche aufgedeckt: Newton glaubte, mithilfe prismatischer Experimente beweisen zu können, dass das Licht der Sonne aus Lichtstrahlen verschiedener Farben zusammengesetzt sei. Goethe zeigt, dass dieser Übergang vom Beobachtbaren zur Theorie problematischer ist, als Newton wahrhaben wollte. (...) Wenn Goethe darauf beharrt, dass uns der Übergang zur Theorie nicht von den Phänomenen aufgezwungen wird, dann kommt dadurch unser eigener, freier und kreativer Beitrag zur Theorie-Bildung ans Tageslicht. Und diese Einsicht Goethes gewinnt eine überraschende Schärfe, weil Goethe plausibel machen kann, dass sich alle entscheidenden prismatischen Experimente Newtons ebenso gut mit einer alternativen Theorie vereinbaren lassen. Wenn ich recht sehe, war Goethe der erste Wissenschaftsphilosoph, der mindestens eine empirisch äquivalente Alternative zu einer wohletablierten physikalischen Theorie gesehen hat: Damit war Goethe seiner Zeit um ein gutes Jahrhundert voraus. (shrink)

It is sometimes alleged that the study of emotion and the study of value are currently pursued as relatively autonomous disciplines. As Kevin Mulligan notes, “the philosophy and psychology of emotions pays little attention to the philosophy of value and the latter pays only a little more attention to the former.” (2010b, 475). Arguably, the last decade has seen more of a rapprochement between these two domains than used to be the norm (cf. e.g. Roeser & Todd 2014). But there (...) still seems to be considerable potential for exchange and dialogue if the situation is compared with their intimate relationship in central strands of early realist phenomenology. The philosopher perhaps most representative of this ecumenical approach is Husserl’s early student Dietrich von Hildebrand (1889-1977). From the very early stages of his philosophical career, Hildebrand has developed one of the most original, comprehensive and nuanced accounts of emotions at whose core is a detailed examination of their connection to value. While his central concern with the ethical significance of our affective life is in many ways continuous with Scheler’s work and draws crucially on Reinach’s philosophy of mind, Hildebrand’s own reflections considerably expand on and substantially modify the picture of the ontology and normative role of emotions defended by these authors. In this article, I reconstruct Hildebrand’s view of emotions with a particular focus on those aspects which represent his most distinctive contribution to this subject. (shrink)

Als Goethe in seiner monumentalen Farbenlehre einen Angriff auf Newtons Theorie des Lichts und der Farben lancierte, setzte er eine Methode ein, die er als Vermannigfachung der Erfahrungen bezeichnete: Er variierte verschiedene Parameter der newtonischen Experimente, um neuen Spielraum für Alternativen zur Theorie Newtons zu gewinnen. Dabei erzielte er durchaus Erfolge. U.a. entdeckte er das Komplement zum newtonischen Spektrum (das aussieht wie dessen Farbnegativ und durch Vertauschung der Rollen von Licht und Finsternis entsteht). Kürzlich hat der Wiener Maler Ingo Nussbaumer (...) Goethes Methode kongenial fortgeführt. Dabei hat er sechs weitere Farbspektren entdeckt. Sie entstehen, wenn man anstelle des Hell/Dunkel-Kontrasts (in Newtons und Goethes Experimenten) mit Paaren bunter Komplementärfarben arbeitet. Die neuen Farbspektren sehen genauso differenziert aus wie Newtons und Goethes Spektrum; doch anders als diese enthalten sie die unbunten "Farben" Schwarz und Weiß. Die vielfältigen Ordnungsbeziehungen und Symmetrien, die Ingo Nussbaumer in der Farbenwelt der insgesamt acht Spektren ausgemacht hat, verhelfen uns vielleicht zu einem tieferen Verständnis der Prinzipien menschlicher Farbwahrnehmung. Und sie tauchen die überkommenen Prinzipien der additiven und der subtraktiven Farbmischung in neues Licht. (shrink)