Präzision versus Exaktheit: Konfligierende Ideale der angewandten mathematischen Forschung: Das Beispiel der Tragflügeltheorie

It is often supposed that mathematical argument provides a model of precision for the sciences. In contrast to this view, the present article proposes to distinguish between mathematical exactness as a (historically variable) ideal regulating the inner standards of mathematical argumentation and precision as a (historically variable) norm governing the relation between products of mathematical reasoning in scientific contexts and empirical or practical data. By discussing a major achievement in the mathematization of flight, Ludwig Prandtl's lifting line theory of wings, it is shown that exact reasoning does not necessarily lead to scientific precision, and that the achievement of precision may even require to loosen existing standards of exactness. It is argued that the main contribution of mathematical argument to generating precision in science lies in its capacity to provide sophisticated tools for the production of data, rather than in its adherence to an ideal of exactness.     

Spezialisierung und Bildungsanspruch. Zur Geschichte der Technischen Hochschulen im 19. und 20. Jahrhundert

In the late 19th century at the “Technische Hochschulen” the understanding of “Wissenschaft” and “Bildung” changed considerably. During the 19th century the “Polytechnische Schulen” and “Technische Hochschulen” adopted the neo-humanistic standards of “Bildung”, established by the universities and the “Humanistische Gymnasium”. At the end of the century they joined the “realistische Schulbewegung” which emphasized the value of mathematics and natural sciences, taking issue with the classical languages. At the same time, systematic experimentation was added to mathematics, natural sciences and technical experience to constitute the specific methodology of engineering sciences. Attempts to define specific technical elements of “Allgemein-bildung” did not succeed as a result of the rapidly increasing differentiation and specialization of engineering sciences.     

Jesuiten zwischen Religion und Wissenschaft

Natural sciences and natural philosophy of the Jesuits are based on theology. At least the concept of God is an integral part of their theoretical structure. Examples are taken from Rudjer Boskovic, Honoré Fabri and Nicolaus Cabeus. In fact, the Jesuits, e.g. Theophil Raynaud, dealt with natural theology as the spiritual foundation of knowledge independent of revelation. But natural theology, as in Raimundus Sabundus, has an anthropocentric and hence moral dimension: it links knowledge with religion. ‘Ignatius of Loyola influenced decisively the Jesuits’ concept of science and its relationship to religion through his Spiritual Exercises in which meditation and religious practice are developed into a technique and a scientific approach to faith.     

Disziplinerneuerung und Universitätsreform: Das Ius publicum Romano Germanicum

What caused the reforms which permitted the universities in the Holy Roman Empire to become leading places of scientific communication and mental orientation for centuries? In most cases, outside influences - pressures from governments, princes, scholars, councillors, consistories, or, as we would say today, state and churches - were decisive. But some reforms were the consequences of paradigm-changes within the universities themselves. Such shifts were less likely to originate with faculties concerned with medicine or the natural sciences than with those which were concerned directly with the political community or human societies. This changed only in the nineteenth century, which cannot be dealt with here.     

Zur frühen Geschichte der Paläocheloniologie von Schaumburg‐Lippe. Die Rolle des Gymnasial‐Professors Max Ballerstedt in der Naturwissenschaft

A survey is given on some new aspects of the early history to the palaeochelonology in Schaumburg‐Lippe (Northern Germany). The very slow development of this is good reconstructable on base of authentic estates. It is the first time to made such a nearly complete reconstruction.     

Von der Naturgeschichte zur Naturwissenschaft Die Naturwissenschaften als eigenes Fachgebiet an der Universität Jena

Since 1790, the term Naturwissenschaften occurs in the lecture lists of the University of Jena published in the Allgemeine Literatur-Zeitung of Jena. Naturwissenschaften is used as a title for lectures previously listed under the headings of Philosophie or Naturgeschichte. The introduction of the concept of Naturwissenschaften is interesting for several reasons: Firstly, at that time it is not the usual label in this context, and one therefore has to ask whether it already implies the connotations that are associated with the modern concept of Naturwissenschaften, i. e. science in the modern sense. Secondly, the lecture lists of the University of Jena give insight into the various changes in the established ordering scheme for academic lectures that lead to the introduction of the term Naturwissenschaften, thus contributing to a better understanding of both the history of this concept and of the development of the university faculties as we know them. A close look at the concept of Naturwissenschaften as it was used around 1800 may, thirdly, help to understand the use made of this concept in philosophy, especially in the philosophy of nature of this period.     

Die Französische Revolution im Spiegelbild. Die Reaktion der deutschen Ärzte auf die Revolution und das Revolutionieren

The German physicans and medical scientists reacted to the French Revolution in several ways, if you judge only from the medical literature:

• 1 At the beginning of the French Revolution, the scientist answered with still silence, whereas the young intellectual generation was filled with enthusiasm. But after the battle of Valmy (1792) this enthusiasm vanished and they resigned to execute an equal revolution in Germany.
• 2 When, in the middle of the 1790s, scientists gave commentaries on revolutionary acts, they despised the revolution itself. This could only destroy the old – and even better – order. They argued that you can have recourse to science to avoid the political and socially deranged situation.
• 3 This rejection against the political revolution was combined with a rejection against the influences of natural philosophy on medicine. Schelling's philosophy plays the role as an scientific revolution with all negative aspects like the political one. In this sense, the science in the old scientific manner has to be an accepted refuge.
• 4 But in this retreat they developed ideas of German national science to conteract on the French influences. The consciousness of nationalism was supported by the scientists of romantic movements.
• 5 The following degree is characterized by a mental leap. Now, they argued, it will never be necessary to revolutionize the medicine: in science all the ideals of French Revolution are realized – freedom, equality and fraternity.
• 6 Consequently, only in a formal sense did they respond to the French Revolution and so they avoided recognizing, that science is influenced politically and also science itself exercises on in a political way.

     

Reine und angewandte Chemie Die Entstehung einer neuen Wissenschaftskonzeption in der Chemie der Aufklärung

In its attempt to achieve acknowledgement and support as a true science and academic discipline eighteenth-century chemistry experienced that the traditional distinction between theory and practice, respectively between science and art, was an incriminating heritage and did not longer conform to the way chemists saw themselves. In order to substitute the former, socially judging classification into theoretical science and practical art, J. G. Wallerius from Uppsala coined the term pure and applied chemistry in 1751. The idea behind this new conception was that it ought to be chemistry's research aim and not the kind of work, be it manual or intellectual, which was to decide about its branches and their dignity. The change in orientation which took place during the eighteenth century, and which is symbolized by the new dichotomy “pure and applied”, led towards a revaluation of the utilitarian aspects of chemistry. Its historical roots reach back to a long and fruitful cooperation of, and interaction between chemistry and economy, which was reinforced by the Stahlian tradition in Germany and Scandinavia. Subsequently, it was its strong economic bias that helped chemistry to become institutionalized and accepted as an academic discipline distinct from the medico-pharmaceutical profession. The analysis of this change of attitudes, behaviour and institutional pattern suggests that, at least during the period of institutionalization of this particular discipline, social structures and the intrinsic scientific contents are so tightly interrelated, that any division into “internal”, cognitive developments (facts, theory and subject-matter) and “external” conditions (social context and stategies of institutionalization) would be artificial, since they both constitute the scientific community as a context of argumentation and action.     

Messen und Zählen. Die Herstellung des normalen Menschen als Maß der Gesundheit

The emergence of a ‘norm of normalcy’ in 19th century laboratories and hospitals was in no way simply a byproduct of the scientific search for knowledge. It was instead closely associated with expectations of social egalitarianism which merged with the moral economy of a new scientific objectivity. The establishment of normal people as a valid measure for a population socially divided and segregated in estates was thus an essential element of the processes of social formation which created our modern society.     

Die Idee einer historischen Entwicklung der Krankheiten des Menschengeschlechts und ihre Bedeutung für die empirische Medizin des frühen 19. Jahrhunderts

In early 19th-century German medicine many doctors had a strong interest in historical pathology. They investigated the historical records of fevers and epidemics in detail, trying to find out how the changing influence of the epidemic constitution worked and hoping that history would help them to define specific disease entities. The underlying theory of this endeavour was that diseases undergo a historical development similar to the evolution of plants and animals. This paper tries to show that historical pathology was, in its time, a legitimate attempt to solve the most urgent problems of empirical medicine.     

„Und nur die Zukunft wird Klarheit bringen!”︁Der Fall des Biomediziners Jacques Benveniste aus dem Jahr 1988 im Blickfeld der wissenschaftlichen Publikationsorgane und der Laienpresse

Scientific disputes on the objectivity of research results are an integral part of the collective production of knowledge. One motivation to study cases of scientific controversy is the attempt to discover general patterns in the behaviour of participants and institutions involved in such controversies. Yet, for there to be a controversy, one must assume an important amount of social interaction, so much so that it renders it an essentially social phenomenon, which is accessible to historical study. Cases of obvious scientific fraud, in addition, are neither clear‐cut nor rare and the mere accusation of scientists by their peers frequently constitutes considerable examples of scientific debate. Together with this, it is often assumed that publication organs play a dominant role in directing the lines of scientific controversy, but their institutional significance and the task of individual editors remain widely unexplored. The present article studies the prominent Nature affair of the Parisian biomedical scientist Jacques Benveniste, both, from a perspective on scientific fraud and on the beginning and closure of scientific disputes. One of the most remarkable features of Benveniste's antibody dilution experiments was that they stroke at the foundations of modern physical and biomedical sciences. Could recent history of science actually resolve the case of the so‐called ‘memory of water’ phenomenon?     

Die Gesellschaft Naturforschender Freunde zu Berlin ‐ Bestand und Wandel einer gelehrten Gesellschaft Ein Überblick

The article deals with the foundation and development of the society Gesellschaft Naturforschender Freunde zu Berlin in the 18th and 19th centuries, its position as a privat society for natural history in Berlin, and its relation to Freemasonry. The paper shows the change of meaning of these society, especially after the foundation of the Berlin university in 1810.