Theophrast über Pflanzenkrankheiten. Ein Beitrag zur Geschichte der Phytopathologie in der Antike

Already before Theophrastus there was a botanical literature which also dealt with the diseases of plants, but we have only indirectly access to it — mainly by way of Theophrastus. The botanical excursus of the Hippocratic series of writings De genitura, De natura pueri, De morbis IV, which attributes the health of plants to a balance of warmth and cold and a correct quantity of specific humidity, forms an exception. This excursus hints at what is more fully developed in Theophrastus discussion of the diseases of plants: The diseases of plants are understood in close analogy to those of animals or human beings. In both cases, a basic distinction is made between inner, dietetic diseases and outer, traumatic ones. According to Theophrastus, especially humidity and an innate warmth are life-sustaining factors. A disturbance of the natural humidity/warmth-household must be counteracted by respective measures. As far as the terminology of plant diseases is concerned, Theophrastus relies on already existing concepts. Classical literature after Theophrastus has made no substantial contributions to phytopathology.     

Geschlecht und Gesellschaft: Die ersten Ärztinnen und sozialpolitische Vorurteile

The objective mode of scientific inquiry has increasingly been called into question especially within feminist theory. I have tried to introduce two methodological approaches in examing a small area of medical opinion-making in the medical press at a period in which the question of women doctors was being discussed, but very few women doctors were actually practicing in Germany. Methodologically feminist history sees gender as a structural component used to ascribe sexual division of labour and to form concepts of “masculinity” and “femininity” in a society. It does not define “women's history” as a separate sphere additive to other traditional areas of historical writing including history of science. The second methodological approach is that of deconstruction: “objective” statements in medicine and the biological sciences are part of social and cultural preconceptions. I have examined the pattern of unreflected scientific statements about women's claims to want to become doctors. The pattern is one of preventive prejudice: representative doctors wrote about women in physiological and biological terms of being “weak” and “unfit”. This was an effective strategy for maintaining a status quo of dequalification. The historical examination of women entering the professions has not so much to do with their own capacities, but rather with socially conceived forms of argumentation indirectly applied: preventive statements in medicine about biological function, the “weaker” sex, intellectual denigration, physiological determinism. Some of the statements I found are amusing, but the humour becomes bitter when the consequences enter our social consciousness.     

“Lachkabinett” und “großes Fest” der Physiker. Walter Grotrians “physikalischer Einakter” zu Max Plancks 80. Geburtstag

“Funhouse” and “Big Celebration” of the Physicists. Walter Grotrian's ?Physical One‐Act Play”? for Max Planck's 80th Birthday. On the occasion of Max Planck's 80th birthday on April 23, 1938, a “big celebration of the physicists” (großes Fest der Physiker) was celebrated at the Harnack‐House in Berlin. The festivities were organized by the German Physical Society. Part of the ceremony was a “Physical One‐act‐play” (Physikalischer Einakter) written by the Potsdam astrophysicist Walter Grotrian. The actors of the humorous play were chief protagonists in the development of quantum theory such as Debye, Sommerfeld and Heisenberg. In this essay we analyze Grotrian's drama against the background of both the festive event and the professional and social setting of the physicists. We argue that below the level of comedy a number of characteristic and normally unexpressed aspects of the epistemic culture of the German physics by the end of the nineteen‐thirties is treated in the play.     

Auf der Suche nach der Politik in der Wissensproduktion: Plädoyer für eine historisch‐politische Epistemologie

In Search of Politics in Knowledge Production. A Plea for a Historical‐Political Epistemology. Knowledge production has an intrinsic political dimension. Starting from this presupposition, it is argued that the systematic integration of and reflection on the political dimension is necessary for an adequate understanding of historical processes of knowledge production in the sciences. The consecutive plea for a historical‐political epistemology proceeds in two steps: First, it is illustrated that in a number of recent historical science study cases, the political dimension is frequently marginal, or even absent. After a short discussion of previous theoretical concepts to describe the impact of politics for the production of scientific knowledge, an approach is sketched which builds on Hans‐Jörg Rheinberger's historical epistemology and Bruno Latour's symmetrical anthropology. It is argued that in addition to Rheinberger's program to describe epistemic systems, the political dimension is intrinsic to three stages of the process of data production: First to an initial phase which consists in the arrangement socio‐technical configurations to produce new evidence. Here, factors such as the culturally shaped perception and evaluation of ?relevant”? problems, as well as the perception of career resources have to be taken into account. Second, the political dimension is relevant in view of the continuous re‐adjustments of the configuration of epistemic systems, e. g. towards newly available financial, technical, or intellectual resources and ?relevant”? challenges from outside the system. Thirdly, the data produced and represented by epistemic systems – “evidence” – are yet in need of interpretation. This process is in itself imbued with continuously shifting mechanisms of selecting and creating hierarchies amongst the pool of available data.     

Erfahrung,Weltbild und Erkenntnis bei Nikolaus Cusanus

To explain the interaction of stillness and motion of thought, Nicholas Cusanus formulated his renowned comparison with a cosmographer, which through five gateways, corresponding to the five senses, receives information about the world in the form of messages. What follows therefrom is not directly an analysis of the world but of the Creator, whom the philosopher mirrors in himself as a creator of scientific symbols. Cusanus was repeatedly suspected of Pantheism. What is crucial, however, for the critique of reasonning is the parallelism, that God's omnipresence in his creation corresponds to a universal capacity of the human mind to perceive everything by means of a hypothetical otherness (alteritate coniecturali). Therefrom proceeds the general projection that everything can be seen in mathematical terms. Mathematical calculating, working with figures, reducing to units, leads Cusanus to God's creative power as much as to the functioning of the intellect. However, his renowned mental experiments on the minimum and maximum were purely in pursuit of the goal of describing the fluid frontiers of defined thought. This is also true of his cosmology. Cusanus argued mathematically in order to prove the non-mathematical and the non-realistic.     

Die Pansophie des Comenius und der Baconismus der Royal Society

The specific comprehension of the subject of the modern times in the 17th century articulates itself in the pretension to be the master of the world of nature and human beings. This pretension, however, was not longer legitimated in a theological or biblical argumentation, but with the philosophical hint on a special qualification of the human being: knowledge and science. In this view, the philosophical reflections of Francis Bacon of Verulam, which were culminating in the well-known judgement of the coincidence of knowledge and power, became the very important philosophy of science of the most prominent academy of sciences in the 17th century: The Royal Society of London. This “Baconism” distincted himself strictly from all questions belonging to religion, politics, social or moral problems. This distinction was the reason for its opposition to the “Pansophie” of Johann Amos Comenius, whose main intention was the general reformation of the whole world, including a reform of science, religion and politics. The insistence of Comenius for the social responsibility of science is still up-to-date.     

Der Lexikograf Gerhard Wahrig – Systemgrenzen und Ressourcen: Zur Entstehung seines Projekts „Wörterbuch als Datenbank“

Systems, Boundaries and Resources: The Lexicographer Gerhard Wahrig (1923–1978) and the Genesis of his Project “Dictionary as Database”. Gerhard Wahrig’s private archive has recently been retrieved by the authors and their siblings. We undertake a first survey of the unpublished material and concentrate on those aspects of Wahrig’s bio-ergography which stand in relation to his life project “dictionary as database”, realised shortly before his death. We argue that this project was conceived in the 1950s, while Wahrig was writing and editing dictionaries and encyclopedias for the Bibliographisches Institut in Leipzig. Wahrig, who had been a wireless operator in WWII, was well informed about the development of computers in West Germany. He was influenced both by Ferdinand de Saussure and by the discussion on language and structure in the Soviet Union. When he crossed the German/German border in 1959, he experienced mechanisms of exclusion before he could establish himself in the West as a lexicographer. We argue that the transfer of symbolic and human capital was problematic due to the cultural differences between the two Germanies. In the 1970s, he became a professor of General and Applied Linguistics. The project of a “dictionary as database” was intended both as a basis for extensive empirical research on the semantic structure of natural languages and as a working tool for the average user of the German language. Due to his untimely death, he could not pursue his idea of exploring semantic networks.     

La théorie des éléments de Christophorus Clavius et l'idée du globe terraqué

Christophorus Clavius' Theory of the Elements and the Idea of the Terraqueous Globe. The need to reconcile Aristotle's theory of elementary spheres with the evidence of earth above sea level – the so‐called ‘terra firma’ – induced an important conceptual shift. As a consequence anti‐Aristotelian arguments were brought to the fore in order to be incorporated into the very same Aristotelian tradition. The German Jesuit Christophorus Clavius played a momentous role in this process. He introduced the idea of the terraqueous globe into the Scholastic cosmology, modifying the logical frame of Aristotelian physics. The present work analyses Clavius' theory as well as the procedures he considers to reach his purpose. He used a combinatorial approach to study the relations occurring between the four elements – earth, water, air and fire – and analysed their relations from a physical perspective, proposing a possible structure of the sublunary world.