Zur Verwendung physiologischer Analogien bei der Entstehung der experimentellen Psychologie

In the middle of the 19th century, a disfavourable attitude towards the use of analogies prevailed in physiology and in psychology. The emerging experimental psychology nonetheless turned to analogies, two of which are discussed: the attempt to elucidate the construct “sensation”, and reaction time measurement.     

Wissenschaftliche Photographie als visuelle Kultur. Die Erforschung und Dokumentation von Spektren

This paper discusses facets of 19th‐century scientific photography as a visual culture. The example of spectral research and documentation is particularly well suited, because prismatically diffracted light from the sun or from luminous gases was one of the most frequently examined phenomena of that century. The results were significant not only for physics but also for analytical chemistry and astrophysics. The spectrum also served as an ideal test object for checking the effectiveness of a wide array of photochemically sensitizable surfaces to the various color regions. Scientific photography became the most important experimental technique in the infrared and ultraviolet. H. A. Rowland's spectrum charts are discussed as an example of the transition from comprehensiveness in documentation to fetishism. The discussion of the Lippmann process, one of the first methods of color photography, addresses the associated training of the eye. Issues of authenticity and the much averred ?mechanical objectivity”? are raised with regard to retouching. The overriding theme of visual science cultures leads furthermore to unanticipated interdependencies with other scientific fields, such as geography, and draws the importance of practitioners into the foreground.     

Deutsch-italienische Wissenschaftsbeziehungen im 18. und 19. Jahrhundert — Dimensionen und Perspektiven

The scientific interrelationships between Italy and Germany in the 18th and 19th centuries — a hitherto neglected area of research — are discussed in an overview according to the following ten dimensions: language knowledge and translations; reviews and bibliographies; library content; personal contents and correspondance; travel reports and travel guides; diaries and autobiographies; university studies and research sojourns; membership in academies and scientific societies; practical and theoretical resonance; comparisons to other countries. This approach, which has to be concretized in future studies, promises at the same time general insights into the logic of science and its progress.     

Raumvorstellungen und Erkenntnismodelle im 18. Jahrhundert

Since the late 17^th century, two physical concepts of space exist. Isaac Newton's theory of an immovable ‘absolute space’ made it possible to explain motion and force by the quality of material elements. Less influential was Gottfried Wilhelm Leibniz's concept of space as an ‘order of coexistence’, which focuses, contrary to Newton, on the relationship between material bodies. The author argues that both concepts not only concern physical notions, but also include general models to explain cause, effect and relation. In an analogy to Newton's ‘absolute space’, theories of natural law employ the state of nature to explain society according to the anthropological quality of human beings. Leibniz's concept, in contrast, is used to elaborate theories of complex dynamic interactions and relationships. This essay attempts to illustrate the application of Leibniz's concept with examples of 18^th century natural history, demography, economic theory and Charles Bonnet's natural law.     

Analogie und mathematisches Denken

This article deals with six aspects of analogical thinking in mathematics: 1. Platonism and continuity principle or the “geometric voices of analogy” (as Kepler put it), 2. analogies and the surpassing of limits, 3. analogies and rule stretching, 4. analogies and concept stretching, 5. language and the art of inventing, 6. translation, or constructions instead of discovery. It takes especially into account the works of Kepler, Wallis, Leibniz, Euler, and Laplace who all underlined the importance of analogy in finding out new mathematical truth. But the meaning of analogy varies with the different authors. Isomorphic structures are interpreted as an outcome of analogical thinking.     

Ars critica. Der Rhetorlehrer Quintilian als Vorbild für Begriffe und Aufgaben von Kritik in neulateinischen Reden und Schriften Deutschlands im 18.Jahrhundert

Theme of this article is the ancient Roman tradition of criticism based of the standard ">institutio oratoria« of the late Roman teacher of rhetoric Quintilianus and the reception of rhetorical and critical theory among German 18th century philologists. Just like Immanuel Kant's terminology of 'Kritik' the Latin terms critica and ars critica became in the 18th century basic terms for the research in the history of philology and the social importance of this scientific work. The researchers' documentations in the 18th century demonstrate the ancient tradition between criticism and the liberal arts of the trivium which are studies in rethoric, dialectic and grammar.     

Die Mathematisierung der Naturwissenschaften vor dem Hinter-grund der Bildungsvorstellungen des 19. Jahrhunderts

Both, astronomy in the first half of the 19th century and physics in the second half of the 19th century functioned as models and paradigms for the other sciences. The paradigmatic character of a theoretical, mathematical astronomy was due mainly to its capability to predict future events. According to the influence of the Romantische Naturphilosophie the mathematization of physics in Germany took place belatedly compared to France. A modified Newtonian research program with its mathematical implications was adopted by German physicists only after the establishment of the principle of energy conservation. German physicists of the late 19th century claimed over and above the results of physicists the successes of German technology for physics and interpreted these achievements as “cultural” achievements. They combined this claim with a request for a better representation of physics in the curricula of secondary schools so as to be comparable to that of mathematics. The resistance of the most prestigious secondary schools, the Humanistische Gymnasien, against this request meant that the concept of Bildung as propagated by physicists was not accepted generally in Germany.     

Lügen ist überhaupt das Kennzeichen unserer. Zeit Über einen unveröffentlichten Briefwechsel zwischen Max Born und Friedrich Herneck

The East Berlin marxist Friedrich Herneck and Max Born, Nobel Price winner in physics, exchanged more than 140 letters in the years between 1958 and 1970. In the beginning they discussed problems of the history of science, especially Born's personal memories of the development of physics in the 20th century. In later years they discussed political and social problems too. Only in these letters Born expressed clearly his attitude to communism and the social system of East Germany.     

„Und setzet eure Worte nicht auf Schrauben”︁ Medizinische Semiotik vom Ende des 18. bis zum Beginn des 20. Jahrhunderts - Gegenstand und Forschung

There is no doubt that medical semiotics are having a revival at the moment. Different aspects of yesterday's and today's interest in semiotics and in the historical interpretation of signs of disease in the context of theory and history of medicine can be illuminated: their deciphering as the history of the sign in medicine by historic science, their overestimation by philosophy during the Age of Enlightenment, their reduction to a phenomenology of medicine and natural science during the first half of the 19th century and their transformation to medical diagnostics since the middle of the 19th century and recently even their functionalization as methodical instrument within the history of science. The following will show the change in meaning of medical semiotics. Modern development and especially the transition to medicine, based on natural science, will be emphasized.     

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.     

Die Centrosophia des Athanasius Kircher SJ: Geometrisches Paradigma und geozentrisches Interesse

The main subject of the paper is to give an example of what could be called, in the history of philosophy and science, reinforcement of traditional topics or paradigms of explanation in order to give explanatory support to or to coooborate the defence of old or the solution of new problems. In the 17th century nearly all positions in the natural science are dependent from theological and philosophical (metaphysical) presuppositions, especially all positions which belong to types of the scientia universalis (Yves de Paris, S. Izquierdo, A. Kircher). To defend the finiteness of the world and the geocentric position of the earth, the Jesuit A. Kircher (1602–1680) returns to an old topic of cosmological speculation, to the geometria speculativa, in order to demonstrate the absolute perfect and finite structure of the world as an analogon of the absolute perfect and finite structure of the cercle or, better, the sphere (globe). He shows this in his Iter exstaticum (Rome 1656) and in his Mundus subterraneus (Amsterdam 1665). The paper discusses only a central part of the Mundus subterraneus titled ‘Centrosophia’: here we find all typical arguments for the phenomenon of reinforcement of old topics and paradigms. God is the center or the non-dimensional point (punctum) of the cosmic sphere (which is the sphere of all being) and he is in consequence the principle of all geometrical (ontological) parts of this figure. Kircher transmits the evidence of the perfect geometric relation between center and circumference modo analogico to the relation God (creator) and world. Together with this well known and often used analogy he develops a new theory: the theory of the dignity of the subterranean parts of the earth and the earth as earth, as the unic and ideologically exclusive place in all reality that gives mankind the fundament to develop its own implications. The high estimation of the earth sets free an unprejudiced view of what the subterranean area really is: Kircher thinks here in organologic categories — the subterranean world is an analogon of the world as such and this world is a great animal. Kircher develops in the limits of his traditional geocentric position an new non-traditional theory of the inner side of the world.     

Schweretheorie und Weltbild des Nikolaus von Kues: Zu ihrer vermeintlichen Modernität

Regarding his world view and his heaviness theory Nicolaus Cusanus is imputed to having used (at least to some extent) forebodings and anticipations of modern conceptions. In the dialog Idiota de staticis experimentis he imputed the quantitative points of view of modern physics programmatically. In contrast with this, this article will show that the quantitative point of view is proposed for an inapt object at least. Cusanus based his reflections on one hand on the Aristotelic theories of elements and their heaviness with ‘positive’ and ‘negative’ weight (only thus, assumed inconsistencies can be explained), on the other hand he wants to determine the essential, qualitative properties of the forma, while only their complete abstraction by reduction on the mass without properties should result in an object for comparative weighings — lately in different ways by René Descartes and Isaac Newton. The putative modernness of cusanian conceptions compared with Aristotle are based on the tradition of platonian and stoic modifications which sooner were compatible with christian ideas.     

Reformation(en) und Wissenschaft(en). Einführung in das Tagungsthema

Based on a brief historiographical survey, the article aims at tracing some intellectual relationships between early modern science and the protestant Reformation (or the various individual reformations underlying it). Besides the mere structural analogies of the two reform movements and their common debt to Renaissance humanism, common elements such as the new reading of texts and the new role of the individual, but also the philosophical link between voluntarism and the notion of natural law, are discussed. However, the ambiguous attitude towards natural knowledge and the wide variety within the European protestant movement ask for a much closer look into the relationships between science and the Reformation than has been hitherto been achieved.     

Die Embryologie im Spannungsfeld zwischen Tradition und Empirie

Already in classical antiquity people dealt with the principle of formation, developing different theories. Researchers in the renaissance, working in the conflict zone between tradition and experience, tried to prove one or the other of these theories by the means of new observations, especially of chicken development. Aldrovandi was the first to see the real principle of formation of the hen's egg, i. e. the blastodisc, but he didn't recognize the importance of his discovery due to his close adherence to Aristotle in the theoretical field. Fabricius even thought that traditional knowledge was of more importance than his own excellent observations. Parisano was the first to succeed in making a correct interpretation of the function of the blastodisc, but only by holding to a ‘false’ classical theory. Harvey combined his attempt to restore the developmental theory of Aristotle with a religious interpretation postulating God's intervention in all development. Subsequent to atomism, Highmore evolved a two seed theory of development, which in his view made a permanent engagement of God superfluous. Also the first observations using the microscope did not contribute to any improvement in developmental theory. Malpighi used them to confirm the theory of epigenesis, whereas Croone attributed to a piece of blastoderm the proportion of a whole embryo to demonstrate his ovistic theory of preformation. The founder of animalculism Leeuwenhoek, an amateur researcher, was at first not influenced by the trends of the scientific community. He postulated that the spermatozoa, which he discovered, contained perfect miniature animals. His investigations are a good example of where prejudices can lead, even when the observations are excellent. In the 17th century the tension between experience and tradition shifted in favour of experience, but a final solution had not by any means been reached.     

Wissenschaftswachstum in wichtigen naturwissenschaftlichen Disziplinen vom 17. bis zum 21. Jahrhundert

The Growth of Science within Important Scientific Disciplines from 17th to 21st century. – In this paper the growth of knowledge is investigated for the disciplines of Astrophysics / Astronomy, of Physics and of Chemistry in the last centuries. In this context the main emphasis is devoted to the discussion of the growth of literature. Besides, this is also illustrated by the growth of indicators like for example important books, new discoveries in science, the chemical elements, the known chemical compounds and the number of known inorganic chemical structures. Compared to numerous earlier studies a systematic evaluation of all presently available data sources is carried out. The data are fitted by different mathematical growth models (linear, quadratic, exponential, hyperbolic). These are discussed and compared. As far as the exponential growth model is applied the doubling periods obtained have values between 11 and 32 years for the cumulative total of publications, between 24 and 98 years for that of important books, between 79 and 163 years for that of new discoveries and between 10 and 14 years for that of chemical substances. From an order of magnitude point of view this is in agreement with the results of other authors. It is however also demonstrated that the exponential growth model which is normally used is not necessarily the best to describe the growth of the data. Other models are often better suitable to explain the growth. It is shown that linear growth of the yearly publications describes the data better than exponential growth in certain epochs. In this latter case it is demonstrated that the parameter (linear slope) for the rate of increase has a constant values in certain epochs, but rises in steps from epoch to epoch by a factor of 3 to 40. After the second world war the linear growth model for the yearly publications or the quadratic growth model for the cumulative total of publications respectively delivers the best results. This is therefore used for forecasting the future.     

Kleinstadt und Bibliothek in der Frühmoderne. Zu Genese und Struktur der Ratsbibliothek der fränkischen Reichsstadt Weißenburg

Small town and library in early modern times: Even small German imperial towns in particular were unable to conduct their daily business without maintaining a library with a wide range of excellent and usefull books suitable for employment by the judiciary, the administration, the health-care services, the church and school system as well as for supporting the interests of the town effectively. It is clear that the municipial council placed high value on the acquisition of the most important works in the field of law, theology and literature treated in school considering the relatively rational manner in which the “Ratsbibliothek” (library of the council) of the imperial town of Weißenburg (Bavaria) took stock of its books in the early modern times (16th to 18th century): this can be seen in the contemporary cataloguing (1600/1745/1829) of the library. Since the library orientated itself pragmatically towards the administrative interests of the town, there was hardly any inclination towards the acquisition of works in the fields of philosophy or poetry. — This study is based on the first edition of the “Beringer-catalogue” included (1600).     

Wissenschaft im Gehäuse: Vom Nutzen und Nachteil institutionengeschichtlicher Perspektiven

Research is realized in social and cultural context, it is established in institutions, as far as different forms and conditions of practice are concerned. In this article some German examples demonstrate how flexible and varied the institutions of research can be during the course of history of science. The first part deals with historically grown, yet chronologically overlapping institutions of research: beginning with the lonely scholar, going on to hierarchally organized big science and ending up with virtual institutions. In the second part, at the intersection of political‐social administration and styles of scientific thought terms like German Realpolitik, science in context, and science policy are discussed within the modernization process.     

Oszillierende Weltmodelle versus Urknallmodelle. Das oszillierende Weltmodell Friedmanns,die Ablehnung der Anfangssingularität durch russische Kosmologen und die Zustimmung der katholischen Kirche zur Urknalltheorie Lemaîtres und Hawkings

The Russian mathematician and physicist Friedmann and the Belgian priest and physicist Lemaître were the first to consider non‐static world models in the framework of Einstein's general theory of relativity. Friedmann seemed to favour a periodic, oscillating cosmological model. His investigations were taken up by Russian cosmologists in the 1960s. They stated that the singularities present in many of the Friedmann‐Lemaître cosmological models seemed to be artificial and were ascribed to the assumption of a highly symmetric distribution of cosmic matter. Their disapproval of singularities seems to be in accord with Soviet ideological requirements during that time like atheism and dialectic materialism. They had to retract their statements after Hawking had proved his singularity theorems and after the microwave background had been discovered. Hawking followed the line of thought which was initiated by Lemaître in the early 1930s. Lemaître had combined for the first time quantum physics and relativistic cosmology and had developed his idea of the primeval atom, a beginning of the universe in a dense state with just one quantum containing the whole mass of the universe. Pope Pius XII brought together this primeval atom and God as the Creator of the universe and declared in 1951 that big bang cosmology is compatible with the Bible. Not surprisingly Hawking was awarded the Pius XI medal by the Vatican in 1975 for his contributions to big bang cosmology.     

Antiparacelsismus und Dreieinigkeit. Medizinischer Antitrinitarismus von Thomas Erastus (1524–1583) bis Ernst Soner (1572–1605)

Antiparacelism and Trinity: Medical antitrinitarism from Thomas Erastus (1524–1583) to Ernst Soner (1572–1605). – There were close relationships between Renaissance medicine and antitrinitarianism in 16th and 17th century. Forming an important part of the radical reformation antitrinitarianism won many disciples in the Holy Roman Empire and proved its attraction for physicians. This paper centers on two public scandals in Heidelberg and Altdorf involving the reknown university professors and physicians Thomas Erastus and Ernst Soner. Michael Servetus' new concept of the blood flow through the lungs was discussed in Heidelberg. In Altdorf Caspar Hofmann, Soner's colleague, developed a special theory of the blood flow and corresponded with William Harvey. Erastus and Soner sharply critisized the hermectical and neoplatonical ideas of Paracelsus. Although sympathizing with antitrinitarianism they denounced the Paracelsians as heretics. The Polish antitrinitarians were called Socinians, from Faustus Socinus. Their doctrine tended to be Aristotelic and rationalistic. Soner combined a socinian theology with a heterodox Aristotelianism referring to Andrea Cesalpino. Again after Soner's death some of his pupils and other physicians advocated socinianism in Gdansk (Martin Ruar, Florian Krause, Daniel Zwicker,Valentin Baumgart).