Only very few studies exist so far concerning the development of fibre-reinforced plastics. These materials have come into the focus of attention in recent years because of their applications in aircraft design. In Germany their foundations were laid in the interwar period with the emergence of new plastics in macromolecular chemistry and the development of pressed materials. Guided by economic interests, the producers of pressed materials, such as Dynamit AG, promoted the production of FRP in aircraft construction, at first officially, (...) and during the Second World War behind closed doors under the supervision of the German Air Ministry. However, due to a lack of resources the progress achieved in this field could not be implemented before the end of the war due to a lack of resources. The prominence of metallic materials in military aviation research was another impediment. Because of restrictions imposed by the Allies, the first FRP were used in gliders by students after World War II. Carbon fibre-reinforced plastic, currently the best known fibre-reinforced plastic, was first applied serially in Germany in 1974 in the fighter “Alpha Jet” of the aircraft manufacturer Dornier, financed by the Federal Ministry of Defence. The article analyses these developments, thereby highlighting the continuities before and after 1945. (shrink)

The ArgumentThis essay attempts to show the decisive importance of the “scientific discipline” for any historical or sociological analysis of modern science. There are two reasons for this:1. A discontinuity can be observed at the beginning of modern science: the “discipline,” which up until that time had been a classificatorily generated unit of the ordering of knowledge for purposes of instruction in schools and universities, develops into a genuine and concrete social system of scientific communication. Scientific disciplines as concrete systems (...) (Realsysteme) arise as a result of (a) the communicative stabilization of “scientific communities” at the end of the eighteenth century and the formation of “appropriate” roles and organizational structures (in universities); (b) the structural differentiation of the new scientific disciplines from the established professions (law, theology, medicine) in Europe; (c) the formation of scientific communication in the standardized form of scientific publication; the distinction of the separate action-type “scientific research” and the differentiation of these two elementary acts of all future scientific endeavor in relation to each other.2. The scientific discipline as primary unit of the internal differentiation of science has, since its genesis, been stabilized by two conditions: (a) The fact of a science differentiated into a plurality of (competing, mutually stimulating) disciplinary perspectives becomes the chief causal factor underlying the developmental dynamism of modern science; (b) Similar to the way in which the discipline functions as a cognitive address within the system of science, science also links the discipline up as a structural unit (utilized in both systems) with curricular structures in the system of education — i.e., it is stabilized by the central system/environment relation of science. (shrink)

This paper investigates the development of nanotechnology from three different points of view: as a new technology, as social dynamics, and as an ideology. It argues that nanotechnology is not a new technology but a new social dynamics guided by programmatic ideas and situated at the interface between science and the public. Rather than being determined by social constructivism, the main argument is based on the poor scientific and technological identity of nanotechnology. Finally the paper concludes that nanotechnology is to (...) be considered an extension and increase of materials science and engineering, not only scientifically but in particular socially and ideologically, by pointing out common characteristics and differences. (shrink)

Research methods and their developers play a crucial role in bringing together scientific fields. Scientists, who wish to have their methods acknowledged and used in another discipline have to bridge the gaps between different practices and worldviews, and they often experience hostility, incredulity, and in general feelings of ‘otherness’, while changing the established practice in a scientific field. Researchers representing newly emerging fields such as materials science have to overcome obstacles that are caused more by feelings of threat and fear (...) than by arguments rooted in epistemic or social considerations. In using the habitus concept of Pierre Bourdieu, I analyze in this article statements and observations of the scientists who in the 1950s and 1960s have introduced physical methods into chemistry and in so doing merged characteristic features of research communities into a new unit. The habitus of physicists, chemists and method-oriented researchers are shaped by hierarchical relationships inside the disciplines, and between them. Studying emotional expressions in interviews and self-descriptions gives access to hitherto neglected parts of the historical processes leading to new disciplines and fields. The brief case studies presented are seen as exemplars, and the analysis offered is intended more to provide a possible model for further research than as giving conclusive answers. (shrink)

Availability of external funding influences the viability and structure of scientific fields. In the 1980s, structural changes in the manner in which external funds became available started to have an impact on materials science and engineering in the United States. These changes colluded with the search for a disciplinary identity of this research field inside the university. The solutions that arose were intended to find a mediating structure between external demands and resources and disciplinary orientation. Interviews with seventeen scientists in (...) seven universities revealed the impact in local university settings. The rise of research centers as new organizational units in universities can be linked to two periods. In the 1960s, expensive instruments stimulated unit formation; in the 1980s, the increase in application-related funding forced new administrative ways. It is shown that organizational changes also have an impact on disciplinary identity as witnessed by a strong increase in interdisciplinary materials Ph.D.s awarded. (shrink)

The social history of chemistry as an academic discipline is dealt with in terms of competing programs of research and institutionalization, focussing on chemistry's transition from a medical curriculum to an economic and scientific context, as exemplified by universities such as Greifswald, Halle, Göttingen, and Jena in the late eighteenth century. Special attention is given to those factors that constitute, stabilize, and, eventually, re‐formulate disciplinary identity.

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 and “external” conditions would be artificial, since they both constitute the scientific community as a context of argumentation and action. (shrink)

The focus of this essay is on substitute materials, particularly the research on substitute metals. The two periods of autarky in Germany were of primary influence on this field. Engineers and construction engineers proved most important in this context despite inter-institutional cooperation between the disciplines of metals research, materials testing, and technical mechanics. Engineers had to solve construction problems respecting the materials used and to analyse components in terms of economic efficiency. However, the research on substitute metals not only meant (...) the substitution of one substance for another. It also implied economizing and recycling scarce materials. These activities required tacit knowledge. Engineers succeeded to some degree but the German war economy paid a high price for it. Each technical system demanded a case-specific approach. Typically a loss of effectiveness, reliability and durability of the products containing substitutes had to be taken into account. (shrink)

The focus of this volume, which collects both recent and now-classic essays, is the historical emergence of concepts and objects, through new uses of words and ...

Summary We offer a novel historical-philosophical framework for discussing experimental practice which we call ‘Generating Experimental Knowledge’. It combines three different perspectives: experimental systems, concept formation, and the pivotal role of error. We then present an historical account of the invention of the Scanning Tunnelling Microscope (STM), or Raster-Tunnelmikroskop, and interpret it within the proposed framework. We show that at the outset of the STM project, Binnig and Rohrer—the inventors of the machine—filed two patent disclosures; the first is dated 22 (...) December 1978 (Switzerland), and the second, two years later, 12 September 1980 (US). By studying closely these patent disclosures, the attempts to realize them, and the subsequent development of the machine, we present, within the framework of generating experimental knowledge, a new account of the invention of the STM. While the realization of the STM was still a long way off, the patent disclosures served as blueprints, marking the changes that had to be introduced on the way from the initial idea to its realization. (shrink)

In diesem Beitrag lege ich dar, dass in der zweiten Hälfte des 20. Jahrhunderts das Konzept von Werkstoffen (materials) als charakteristischer ontologischer Typus eines neuen Forschungs- und Wissenschaftsstils aufkam. Das soll nicht heißen, dass Werkstoffe niemals zuvor wissenschaftlich bearbeitet worden wären. Zweifellos hatten sich zahlreiche wissenschaftliche Disziplinen mit den Eigenschaften einer ganzen Reihe von Werkstoffen befasst. Doch wurden dabei Werkstoffe nicht als generische, also alle Arten von Stoffen umfassende, Entität betrachtet.Ziel dieses Aufsatzes ist zu verstehen, wie Werkstoffe als Gattungseinheit entstanden (...) sind und zu Objekten einer Wissenschaft wurden, die so unterschiedliche Dinge wie Papier, Holz, Metalle, Beton, Keramik, Polymere, Halbleiter und Kohlenstoff-Nanoröhren umfasst. Im Bemühen, die historischen Begleitumstände des Auftretens von Werkstoffen zu bestimmen, werde ich diese zunächst in historischer und ontologischer Hinsicht einordnen. Wie war es möglich, all diese Dinge in einer einzigen Gattung zu vereinigen? Dann wende ich mich dem sich verändernden Status von Werkstoffen zu, ein Resultat der erfolgreichen Materialforschung. Werkstoffe sind nicht länger die Vorbedingungen, die dem Entwurfsprozess Beschränkungen auferlegen, sondern werden nun selbst spezifisch entworfen. Solche materials by design sind echte, individuell zugeschnittene Schöpfungen und nicht nur einfach Handelsprodukte. Zudem birgt der Wandel ihres ontologischer Status ein Paradox mit seiner Tendenz zur Entmaterialisierung von Technik. (shrink)

In diesem Beitrag lege ich dar, dass in der zweiten Hälfte des 20. Jahrhunderts das Konzept von Werkstoffen (materials) als charakteristischer ontologischer Typus eines neuen Forschungs- und Wissenschaftsstils aufkam. Das soll nicht heißen, dass Werkstoffe niemals zuvor wissenschaftlich bearbeitet worden wären. Zweifellos hatten sich zahlreiche wissenschaftliche Disziplinen mit den Eigenschaften einer ganzen Reihe von Werkstoffen befasst. Doch wurden dabei Werkstoffe nicht als generische, also alle Arten von Stoffen umfassende, Entität betrachtet.Ziel dieses Aufsatzes ist zu verstehen, wie Werkstoffe als Gattungseinheit entstanden (...) sind und zu Objekten einer Wissenschaft wurden, die so unterschiedliche Dinge wie Papier, Holz, Metalle, Beton, Keramik, Polymere, Halbleiter und Kohlenstoff-Nanoröhren umfasst. Im Bemühen, die historischen Begleitumstände des Auftretens von Werkstoffen zu bestimmen, werde ich diese zunächst in historischer und ontologischer Hinsicht einordnen. Wie war es möglich, all diese Dinge in einer einzigen Gattung zu vereinigen? Dann wende ich mich dem sich verändernden Status von Werkstoffen zu, ein Resultat der erfolgreichen Materialforschung. Werkstoffe sind nicht länger die Vorbedingungen, die dem Entwurfsprozess Beschränkungen auferlegen, sondern werden nun selbst spezifisch entworfen. Solche materials by design sind echte, individuell zugeschnittene Schöpfungen und nicht nur einfach Handelsprodukte. Zudem birgt der Wandel ihres ontologischer Status ein Paradox mit seiner Tendenz zur Entmaterialisierung von Technik. (shrink)

The demarcation of science from other intellectual activities-long an analytic problem for philosophers and sociologists-is here examined as a practical problem for scientists. Construction of a boundary between science and varieties of non-science is useful for scientists' pursuit of professional goals: acquisition of intellectual authority and career opportunities; denial of these resources to "pseudoscientists"; and protection of the autonomy of scientific research from political interference. "Boundary-work" describes an ideological style found in scientists' attempts to create a public image for science (...) by contrasting it favorably to non-scientific intellectual or technical activities. Alternative sets of characteristics available for ideological attribution to science reflect ambivalences or strains within the institution: science can be made to look empirical or theoretical, pure or applied. However, selection of one or another description depends on which characteristics best achieve the demarcation in a way that justifies scientists' claims to authority or resources. Thus, "science" is no single thing: its boundaries are drawn and redrawn inflexible, historically changing and sometimes ambiguous ways. (shrink)