Roger Eberhard, Swiss-born and American-educated photographer, conceives his works as series, taking-up impulses and inspirations for new projects from any possible source, such as a story he learns about or media reports catching his attention. He is pa.

In 1675, Leibniz elaborated his longest mathematical treatise he everwrote, the treatise ``On the arithmetical quadrature of the circle, theellipse, and the hyperbola. A corollary is a trigonometry withouttables''. It was unpublished until 1993, and represents a comprehensive discussion of infinitesimalgeometry. In this treatise, Leibniz laid the rigorous foundation of thetheory of infinitely small and infinite quantities or, in other words,of the theory of quantified indivisibles. In modern terms Leibnizintroduced `Riemannian sums' in order to demonstrate the integrabilityof continuous functions. The (...) article deals with this demonstration,with Leibniz's handling of infinitely small and infinite quantities,and with a general theorem regarding hyperboloids. (shrink)

Johannes Kepler belonged to a long tradition of inquiring into nature with reference to God. This applies to Ptolemy, N. Copernicus, Chr. Clavius. Kepler's „new kind of poem” is analyzed in five sections which are based on Keplerian key words: Innovation, Hypothesis, Cause, Soul, Picture. Kepler consciously adhered to new questions, new answers, new methods. He relied on a new notion of hypothesis. His celestial dynamics included a celestial psychology whereby he used a visual conception of astronomy.

Otto von Guericke's scientific method was based on reason and experimental science. His cosmology was embedded in theology and can be interpreted as a refutation of Descartes's worldview. He used Nicolaus Cusanus's theory of quantities in order to characterize the space. The notion of space has to be distinguished from that of world or heaven. Forces play a crucial role in this respect described by Kircher in his ‘Celestial journey’. Guericke read this work very diligently. In spite of some obvious (...) similarities between Guericke's and Newton's scientific aims and methods there are crucial differences between the scientific convictions and results of these scholars. (shrink)

Copyright law is a crucial part of the normative framework of the artistic and art-related practices in the modern world. It facilitates the production and public accessibility of certain works of art and literature, music, moving images, etc. At the same time, it prevents the production and public accessibility of others whichmight have been just as interesting as those we got to know. Intellectual property norms imprint our ideas of authorship as well as the ontological constitution of artworks. Yet the (...) interdependencies and interferences between copyright law, aesthetic theories and artistic practices deserve a more thorough analysis. This paper presents a new approach to an institutional theory of art, analyzing the relevance of intellectual property regimes for the opening and exclusion of certain possibilities in the production, distribution and use of works of art as well as for our understanding of some fundamental aesthetic concepts. (shrink)

The article claims that in the current situation there is no need for the Evangelical Church in Germany to create a new ethics of peace. Christian ethics of peace neither tends to bellicism nor to pacifism. Learned by the history of church, the EKD also rejects the traditional concepts of the holy or the just war. War can never be holy, not even just, but in certain situations warfare may be unavoidable or necessary. Cases of self-defense or the so-called humanitarian (...) interventions are examples for the latter. As the war in Kosovo shows, the modern Christi an ethics of a just peace needs clear and distinct criteria in order to decide whether in a certain situation a humanitarian intervention is necessary or not. (shrink)

Die AutorInnen aus der Humangeographie und Soziologie leisten einen Beitrag zur raumbezogenen qualitativen Sozialforschung, indem sie in kritischer Reflexion auf den spatial turn die soziale Welt erforschen und interpretieren. Einer schlagwortartig vorgebrachten Renaissance des Raumes in den Sozial- und Kulturwissenschaften werden konkrete qualitativ-empirische und theoretisch-konzeptionelle Arbeiten gegenübergestellt, die einen eigenständigen, raumreflektierten Zugang zur Thematik bieten. Die AutorInnen verfolgen zwei Ziele: Zum einen geht es um die Überwindung von „just-do-it“-Ansätzen in der (raumbezogenen) Methodologie. Zum anderen wird deutlich, dass eine eingehende methodologische (...) Reflexion kein redundanter Aspekt ist oder einen lässlichen Arbeitsschritt darstellt, sondern entscheidender Bestandteil qualitativer Forschungslogik sein muss. Gefordert ist hierfür eine Debatte sowohl über die theoretischen Grundlagen einer solchen Positionierung, als auch die Diskussion ihrer praktischen Umsetzungen in der empirischen Forschung. Die AutorInnen demonstrieren, dass mit ‚Raum‘ qualitativ verfahren werden kann und die Sensibilität hinsichtlich relationaler und praxeologischer Raumbezüge in der qualitativen Sozialforschung gestärkt werden kann. (shrink)

In dieser Untersuchung wird die Instandhaltung technischer Artefakte, neben deren Schaffung und Nutzung die dritte grundlegende Form technischen Handelns, als Teilthema der Technikphilosophie systematisch und umfassend analysiert. Nur durch Instandhaltung können die unermeßlichen und vielfältigen mittels technischer Verfahren erzeugten Werte vor vorzeitigem Verfall und Untergang bewahrt werden. Die Studie erschließt Instandhaltung in phänomenologischer (Grundlagen) und normativer Hinsicht (Instandhaltung und Gesellschaft). Die auf Unumkehrbarkeit des Handelns und ganz allgemein des Geschehens gegründete Endlichkeit seiner Dauer bindet das individuelle technische Artefakt als wesentliches (...) Element in den Verlauf der Allgemein-, Technik-, Kultur-, Wirtschafts- und Sozialgeschichte ein. (shrink)

Keine ausführliche Beschreibung für "Die Konzeption einer Metaphysik im Denken von Heinrich Scholz" verfügbar.

Two letters from William Burnside have recently been found in the Nachlass of Robert Fricke that contain instances of the Burnside Problem prior to its first publication. We present these letters as a whole to the public for the first time. We draw a picture of these two mathematicians and describe their activities leading to their correspondence. We thus gain an insight into their respective motivations, reactions, and attitudes, which may sharpen the current understanding of professional and social interactions of (...) the mathematical community at the turn of the twentieth century. (shrink)