Dualistische Entwürfe zur Einheit der Naturphänomene und die Anfänge der Romantischen Naturphilosophie

The importance of German Naturphilosophie for the development of a unified view of nature is often emphasized. The search for ultimate unity of natural phenomena, however, was already too common among physicists of the waning 18th century to ascribe its popularity to the influence of philosophers. To avoid the plethora of imponderable fluids, many ?atomists”? reduced electric, magnetic, thermal, and chemical phenomena to a dualism of contrary principles, thereby prefiguring the ?dynamic”? ideas of romantic Naturphilosophen. In particular we show how Schelling's early account of his Naturphilosophie was shaped by J. A. Deluc's atomistic theory of gases and vapours.     

Visualisierungen in der deutschen Geographie des 19. Jahrhunderts. Die Beispiele Robert Schlagintweit und Hans Meyer

Visualization in 19^th‐century German geography: Robert Schlagintweit and Hans Meyer as examples. – Visual representations of nature formed an essential part of 19^th‐century earth sciences. In particular, colonial photography – as a visual source, and as an instrument of the construction of national identities – serves essential research interests of current history and social sciences. The present paper is a case study on the role and function of photography in German geography of the 19^th and early 20^th centuries. It focuses on the work of the Munich geographer Robert Schlagintweit (1833–1885) and the Leipzig colonial geographer Hans Meyer (1858–1929); the early history of photography in India and the function of images in the geographical exploration of overseas territories are discussed. Although there is nearly half a century between the work of R. Schlagintweit and H. Meyer, their photography shows remarkable parallels. The ideas of both on the practice of visualization are rooted in pedagogic and didactic concepts as well as in popular science. For both geographers photography was essentially a technical help, which often needed graphic revisions. And they both preferred photography to depict people and buildings (compared, for instance, to landscapes). Concerning the more comprehensive question of how far their photography transmitted a specific German ‘image of abroad’, it is indicated that such a specific image should have its essential roots in a peculiar visual culture of German earth sciences in the first half of the 19^th century. Thus the paper offers a starting point for further studies discussing the change from a ‘Biedermeier image’ of foreign cultures to a more ‘colonial’ one in 19^th‐century German geography.     

Eine handgreifliche Geschichtslüge. Wie Martin Luther zum Gegner des copernicanischen Weltsystems gemacht wurde.

Martin Luther has been severely criticized for an offhand remark about Copernicus. In the most frequently cited version of this statement, Luther is alledged to have branded Copernicus as a fool who will turn the whole science of astronomy upside down. This disparaging judgment on Luther prevails in many publications by respected historians of science of the 20th century, although since the early thirties, it has been convincingly demonstrated that the famous citation from Luther's table talk is next to worthless as an historical source, that Luther never referred to Copernicus or to the heliocentric world system in all of his voluminous writings, and that there is no indication that Luther ever suppressed the Copernican viewpoint. His attitude towards Copernicus was indifference or ignorance, but not hostility. In this paper, it is shown that the story of Luther's anti‐Copernicanism emerged in the second half of the 19th century. It was invented by Franz Beckmann and Franz Hipler, two Prussian Catholic historians who were engaged in the conflict between the German government under Bismarck and the Catholic Church (Kulturkampf), and it was disseminated by influential German and American historians like Leopold Prowe, Ernst Zinner, and Andrew D. White. In the second half of the 20th century, many historians of science relied on the authority of these authors, rather than studying the sources or the secondary literature in which it has been proved that Luther's anti‐Copernicanism is an outright falsification of history.     

Electrical instruments in 19th century France,between makers and users

Abstract

Having quickly described new historiographical approaches to scientific instruments, this paper explores some characteristics of the evolution of the relationship between scientific instrument makers and French physicists in the 19th century. Artisans without a scientific culture at the dawn of the century, a certain number of instrument makers were integrated into the scientific community by its end, sharing their practices and their values. These builders served as mediators between different physicists, between physicists and members of other disciplines like physiology and, finally, between savants and the world of technology (telegraphy and then industrial electricity). Symmetrically, a significant number of French physicists left mathematical physics for a physics based on instruments and their development. The emergence, extension, and eventual disappearance of the different contexts of use of an instrument (amateurs, public performances, teaching, research, medicine, telegraphy, industry, etc) illustrate both the boundary crossings between these different domains and the major role that use played in successive reconfigurations of instruments.     

Über deutsch‐ungarische Beziehungen der Medizin im Zeitalter der Aufklärung ‐ zugleich ein Beitrag zur Geschichte der Pestinokulation

The influence of German science and medicine on the development of Hungarian medicine in the age of Enlightenment has been extraordinary strong. Many Hungarian medical students staid in German medical faculties. The medical interrelationships between Germany and Hungary in the 18^th century are discussed in an overview according to following dimensions: education of protestant Hungarian medical students at German »Aufklaerungs‐Universitaeten«, practical and theoretical resonance, membership of scientific societies, personal contacts and correspondence. Outstanding personalities of this aera were Daniel Fischer, István Weszprémi, Abraham Vater. Special attention is given to a new idea: inoculation against plague as first described by A. Vater in his work Blattern‐Beltzen (1721). Thirty years later I. Weszprémi published his original conception ‐ independently from Vater ‐ in the Tentamen de inoculanda peste (1755).     

Physik und Politik in der frühen Bundesrepublik Deutschland. Max Born,Werner Heisenberg und Pascual Jordan als politische Grenzgänger

Physics and Politics in the Early Federal Republic of Germany. Max Born, Werner Heisenberg and Pascual Jordan between Scientific and Political Discourse. – Contrasting the historiography of two major developments in 20th century German history, the creation of quantum mechanics in 1925 and the dispute on the nuclear armament of the Federal Republic of Germany in 1957, the question is raised to which extent the scientific culture was able to bridge political disagreement within the German physicists' community. A twofold story of the private and public exchange between Max Born, Werner Heisenberg and Pascual Jordan among others on the scientists' position to nuclear armament on the one hand and the writing of the history of quantum mechanics on the other hand displays different types of relating scientific work and moral responsibility. Neither politics nor science went on unaltered after the disputes between physics and politics in the early Federal Republic of Germany.     

“Die wissenschaftliche Ausbildung des Arztes ist eine Culturfrage …”. Über das Verhältnis von Wissenschaftsanspruch,Bildungsprogramm und Praxis der Medizin

The article shows that the elite, nationalistic and imperial mentality of German medicine in the second half of the nineteenth century was closely connected to its aim to be understodd as a natural science. With this in view leading representatives of German medicine propagated a scientific approach to man and nature instead of the traditional values of humanistic education (“Bildung”). One of the most important consequences of the new scientific ideal in medicine — integration in governmental planning, the change in professionel status of doctors, the increasing tendeny to recognize biologistic ideologies — was the loss of the medical ideal of the ars medica, a subject which has not received sufficient thematic attention. This theme is explored in the third part of the article.     

Die Seele auf der Bühne der Justiz. Die Entstehung der Kriminalpsychologie im 19. Jahrhundert und ihre interdisziplinäre Erforschung

The mind on the stage of justice: The formation of criminal psychology in the 19th century and its interdisciplinary research. – Criminal psychology emerges at the end of the 18th century as a new academic discipline in lectures and publications. It has recently been investigated by a considerable number of contributions from researchers of different academic backgrounds. In many respects criminal psychology can be seen as a predecessor of criminology. Its subject is the analysis of the origins of crime and its causes and determinants in the human mind. Criminal psychology embraced at that time philosophical, medical, legal and biological aspects. The latter increase in importance in the second half of the 19th century. The conditions of individual responsibility were generally codified in penal law, but had to be individually investigated in crucial cases through expertise in court. There a conflict emerged between medical experts and judges about their ability and competence to decide. At the end of the 19th century criminal psychology is used to fulfil the needs and interests of a criminal law which understands itself as increasingly utilitarian. Force and new instruments of treatment of offenders were legitimized by scientists who were very optimistic about their own epistemological abilities.     

Den Heringen einen Paß ausstellen: Formalisierung und Genauigkeit in den Anfängen der Populationsökologie um 1900

In fisheries biology of the late 19th century, the challenges posed to taxonomy by Darwinian theory intersected with attempts to increase the productivity of marine populations. Addressing both discourses, the influential German zoologist Friedrich Heincke developed a set of methods to determine exactly the differences between varieties or races of herring. In taxonomy, his methods contributed to the development of a biological species concept; in fisheries biology, they allowed tracing the herrings' migrations, which ultimately aided in divising schemes for sustainable fisheries. Heincke's use of mathematical statistics, some of them borrowed from anthropometry, served to distinguish his ‚exact’︁ approach from that of typological taxonomists. Beyond its use as a rhetorical ploy, exactness gained meaning in the epistemic regime of exact reproduction of measurements, which entailed the replication of measurement techniques for the purpose of comparison e.g. of herrings caught at different locations. This exactness was enabled by the formalisation of the process of taxonomic identification.     

Das Werden des Kosmos Von der Erfahrung der zeitlichen Dimension astronomischer Objekte im 18. Jahrhundert

The Permanent ‘Becoming’ of the Cosmos: On Experiencing the Time Dimension of Astronomical Entities in the 18th Century. - This paper deals with two of the initial stages through which the dimension of time, in the sense of an irreversible development, found its way into astronomical-cosmological thinking. The one resulted from the first consequental application of Newtonian principles and laws to cosmic entities outside of our solar system found in the General Natural History or Theory of the Heavens of Immanuel Kant (1755): Endeavoring to explain through natural causes first the peculiarities of the solar system, no longer naturally explainable through the celestial mechanics of Isaac Newton (such as the common orbital plane and rotational direction of all the members of the solar system and the distribution of the masses) - which, however, had been deducible in Johannes Keplers Weltharmonik -, and endeavoring secondly to explain above all the beginning of the inertial movement of all discrete heavenly bodies - which, however, could have been derived from René Descartes's vortex theory - without using arbitrary acts of God as Newton had done, Kant had to introduce an initial state in which matter in the form of atoms was equally and almost homogeneously distributed over the whole space (similar to the permanent state in Descartes's theory). Thereupon, according to Kant, the initial movements of the slowly growing masses resulted from the effect of gravitational forces. The parameters within the solar system which had to be explained, could then be easily deduced from the process of mass concentration at different points and from the resulting vortex movements. - The other initial stage is found in the classification of ‘nebulae’ by William Herschel who introduced the historical time factor, in the above-mentioned sense, as a principle of order in addition to the outward shape, which had become common for all the different elements in natural history during the second half of the 18th century. Thereupon the different shapes of the nebulae could be interpreted as stages of development from the primordial nebular state to multiple or single stars. (Herschel had not yet considered them to be accumulations of stars for lack of a suitable telescope.) Both initial stages, which arose out of the thinking of the second half of the 18th century, were still premature for astronomy and cosmology; they have only been taken up again since the end of the 19th century as a result of the emergence of astrophysics, which provided the empirical data for the earlier speculations and conclusions from analogy.     

Der quantitative Beitrag der nach 1933 emigrierten Naturwissenschaftler zur deutschsprachigen physikalischen Forschung

By scientiometrically analyzing the physics-literature produced between 1925 and 1933 it is shown that the purely quantitative contribution of physicists subsequently emigrating from Germany to the literature produced by the physics community in this country was much lower than hitherto estimated. The actual figure is not in the range of 30%, as is generally assumed, but much nearer to 11%. Control analysis of three leading German physics journals and of memberships in the Deutsche Physikalische Gesellschaft confirms this result. Further investigation of university calendars shows that transferring these results to purely academic physics would amount to committing a “universalistic fallacy”. In academic physics emigré-physicists held a total of 15,5% of all teaching postitions. Differentiating the physics literature into various specialties allows further insights into the cognitive and social structure of the German physics community before 1933. Works of emigré-physicists are not randomly distributed over specialities; instead, the distribution reveals a nearly perfect correlation with what could be called “the specialty's paradigmatic age”. The spectrum begins with quantum theory, where future emigrants produced more than 25% of the literature, and fades away with acoustics, where their contribution amounts to less than 4%. The commonly accepted explanation of this phenomenon, which is based on the assumption that time of institutionalization of a specialty, “prestige” of that specialty, and entrance barriers for Jewish scientists are correlated, is falsified by two cases of non- or zero-correlation: by the very old specialties and by the technical disciplines. A new explanans is proposed which is based on the hypothesis of cognitive and social marginality being correlated and on a certain amount of cognitive marginality enhancing the disposition to innovative behavior and creativity.     

Das erste Jahrhundert deutschsprachiger meteorologischer Lehrbücher

Sequences of text books published during a longer time span offer the opportunity to describe the development and forming of scientific disciplines. Here, the forming of meteorology as a separate discipline is analysed from German textbooks published between 1803 and 1901. This first century of meteorological textbooks can be divided into three phases: (1) a phase of the final definition of meteorology as a discipline within physics (1800–1840), (2) a phase which sees meteorology as an established part of physics (1839–1870), and (3) a phase of further developments within meteorology on the basis of the theoretical equations of hydrodynamics (1875–1901) during which meteorology finally forms as a separate discipline. In phase 1, meteorological textbooks were written by physicists, mathematicians, and other natural scientists. In phase 2, the textbooks were based nearly completely on Pouillet's textbook on physics and meteorology, and finally in phase 3, meteorologoical textbooks were written by meteorologists. The Germanlanguage meteorological textbooks from 1803 to 1901 are listed in Table 1. These books document the shaking off of old views in the beginning of the 19^th century, the establishment of meteorology as a separate discipline in natural sciences in the middle of that century, and the beginning of a specialisation within meteorology at the end of that century.     

Prestige und gemeiner Nutzen Universitätsgründungen im deutschen Spätmittelalter

The medieval German university entered the picture late but thereby as a new and third type of university in Europe besides Paris and Bologna: This was the ruler-controlled ‘Four-Faculties-University’, which powerfully integrated the socially very different associations of liberal arts, theology, medicine, and law. From the beginning on the ‘German type’ was tied to the princely founder, his court, his dynasty, and his territory (in some cases also to the municipal leadership), and it was politically subjected to his will. All foundations produced prestige and dynastic need at first rather than public need (utilitas publica), respectively the advancing of common learned education and science. The great royal dynasties of Luxembourg, Habsburg, and Wittelsbach began founding in Prague, Vienna, and Heidelberg. Up to 1506 all the seven prince electors, some more important princes and big towns of the Holy Roman Empire had their university or had relations to a university. Public need was rather an indirect result: university students utilized surprisingly strongly the possibilities offered by the subsequent university foundations in Germany - about 200.000 people during a long-term 15^th century. However, it has to be thought over in the history of science and effectivity of the German universities in a European frame, that more than 80% of them were ‘only’ students of arts.     

Erfahrung und Vorurteil im naturwissenschaftlichen Denken Johannes Keplers

The change from ancient and medieval to modern natural science, called Wende (instead of ‘revolution’), must be associated with the work of Johannes Kepler and not that of Nicolaus Copernicus. Copernicus merely showed the way, introducing heliocentricity as the order of the planets. This Wende resulted from the synthesis of several disciplines formerly isolated from each other, namely mathematical (i.e. hypothetical) astronomy, new physics, mathematical harmony, astrology, new physical optics, and natural theology. Whereas Copernicus united mathematical astronomy and peripatetic (Aristotelian) physics, Kepler was first to see the necessity for providing a physical explanation and an ontological foundation to the heliocentric system. He was the first to consider and measure the movement of the planets in depth. The elements for his new physics Kepler obtained not from newly observed data, but from a harmonic archetypus of the regular polyhedra fitted in between excentric planetary spheres. On the basis of this archetypus (which he considered to be God's model in creating the universe) he accepted the new heliocentric planetary system as a physical reality. That is why astronomy, by way of taking into account stereometric quantities, is, in Kepler's eyes, a kind of divine worship. Later, the best empirical data had also to be taken into consideration as a means of proving this a priori archetypus (Vorurteil, preconception). The result was, on the one hand, a universal natural science able to explain natural processes in grater abundance than ever before or since in the history of science. Although accepted only in parts, it resulted in founding a new natural science with adherent mathematical and empirical methods. It also led Kepler to establish, step by step, the elliptical path of the planets, thereby overcoming, for the first time, the two axioms of ancient astronomy, requiring uniform and circular planetary motion. It has been shown that this Keplerian Wende was possible only within the Historischen Erfahrungsraum (‘historical field of experience’) of Renaissance Humanism (cf. this Journal 9/1986, p. 201), which came about itself as the result of reactivating the scientific and philosophical thinking of the ancient Greeks and was accomplished by three steps (phases) relating to the revival of (1) original ancient writings, (2) the ancient knowledge of natural facts and data, and (3) the ancient scientific and philosophical ideas and mentalities (Drei-Phasen-Modell).     

略论19世纪上半期德国社会三大思潮

19世纪上半期,自由主义、民族主义、保守主义等三大思潮影响着德国社会的发展。自由主义在德国表现出温和、保守和依赖国家政权的特点;民族主义首先是资产阶级化的知识分子的运动,呈现浓烈的文化色彩;保守主义则以传统、秩序和稳定为原则,展开了与自由主义、民族主义等要求改变现状者的对抗。三大思潮对日后德国历史的走向产生了重要影响。     

„Siege der Freiheit,welche die Menschen durch die Erforschung des Grundes der Dinge errangen”︁ Wandlungen im politischen Selbstverständnis deutscher Naturwissenschaftler des 19. Jahrhunderts

“Victories of Freedom which Humans Achieved by Research in the Foundation of Things”. - This article analyzes the political self-conception of leading representatives of the natural sciences in 19th century Germany. It is argued that the main feature of this self-conception which remained constant over the time consisted in a strong “rationalization-imperative”, i.e. the postulate that state and society have to be reshaped on the basis of natural science. On the other hand, this imperative was put forward in very different forms and with different political content: it shifted from revolutionary aspirations in the period of 1848 to moderate and sometimes even reactionary positions in the last decades of the century.     

“Gedankenaustausch über Probleme und Methoden der Forschung”. Transatlantische Gastprofessoren aus Emigrantenkreisen in Westdeutschland nach 1945

The history of the sciences and humanities follows cycles in some of which there is greater emphasis on the continuity of developments, in others on the breaks in continuity. In recent years the main focus of research for the 20^th century has been on the continuities extending beyond the boundaries of 1933 and 1945. The main aim of this study, however, is to examine the impulses for the internationalization of German universities provided by a transnational group of academic migrants. These migrants, whose origins were in the German academic community, represented an alternative continuity beyond the boundaries of this period: they were visiting academics who were the conveyors and interpreters of ideas from Germany into the USA and Britain and vice versa. The study of this group therefore combines remigration history and the history of universities as institutions, focussing on actors, networks and innovations in teaching, with the history of individual subjects and disciplines.     

“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.     

Die Grippe‐Pandemie 1918–20 in der medizinischen Debatte

The Influenza Pandemic of 1918–20 in medical debate. The history of the so called Spanish Influenza 1918–1920 is summarized especially in regard to the developments in medical debate. In Germany, Richard Pfeiffer, who had discovered Haemophilus influenzae after the previous pandemic 1890 / 91, managed it to defend his thesis that his “bacillus” was the causative agent of the flu, by modifying his theory moderately. The Early Virology of influenza in postwar times was still fixed to bacteriology and did not yet have the force of school‐building. Aggressive therapy, e.g. with derivatives of chinine, were used in a concept of polypragmasy. The connection between influenza in animals and influenza in mankind was unknown or of no major interest till the rise of virology as an academic discipline in the 1950s. Since the outbreak of avian influenza in Asia 1997 virological archaeology is challenged to fill the historical part in the attempt to fight the threat of the highly pathogenic bird flu. In the beginning of the “short 20. century” politicians and doctors had no interest to build a “monument” of influenza. Today, virological reductionism does not have the power to (re‐)construct such a monument.