Why and how have lay people participated in scientific observation? And on what terms have they collaborated with experts and professionals? We have become accustomed to the involvement of lay observers in the practice of many branches of science, including both the natural and human sciences, usually as subordinates to experts. The current surge of interest in this phenomenon, as well as in the closely related topic of how expertise has been constructed, suggests that historians of science can offer a (...) valuable contribution to these vital questions. A historical approach to lay participation allows us to better understand the making of expert-lay relations in science, and it offers a broader, long-term perspective on contemporary debates about that boundary. (shrink)

The ArgumentIt is often assumed that all sciences travel the path of increasing precision and quantification. It is also assumed that such processes transcend the boundaries of rival scientific disciplines. The history of the personal equation has been cited as an example: the “personal equation” was the name given by astronomers after Bessel to the differences in measured transit times recorded by observers in the same situation. Later in the nineteenth century Wilhelm Wundt used this phenomenon as a type for (...) his experiments on reaction times. For historians of psychology, this has been taken to be an exemplary case where quantified laboratory science rescued astronomy by showing that this was really a psychological phenomenon measurable only in complication experiments. This paper challenges this story. Astronomers neither ignored, nor despaired of, the personality problem. Instead, the managers of the great observatories developed a new chronometric regime of vigilant surveillance of subordinate observers. The astronomers' solution was thus intimately connected with social and material changes in their way of life: a division of labor in the observatories, a network of observing sites, a mechanization of observation. The paper documents these changes and then presents a study of one case where managers, amateurs, and psychologists clashed for authority over the personality problem. Measurement is given its meaning when situated in specific contexts of styles of work and institutions. Disciplines give meanings to values, and often resist attempts by others to redefine these meanings or to gain authority over measurement. Quantification is not a self-evident nor inevitable process in science's history, but possesses a remarkable cultural history of its own. (shrink)

ArgumentThis paper analyses a process of co-construction of knowledge and its multiple forms of communication in a country of the European periphery in the early twentieth century. It focuses on Lieutenant Manuel Soares de Melo e Simas, a politically engaged Portuguese astronomer, who moved from amateur to professional during the political transition from the monarchy to the republic. Melo e Simas paralleled his professional career in continuous activity of communicating science to the public in the context of republicanism in a (...) double way, by responding to the agenda of republicanism and by playing an active role in shaping it. He aimed at educating lay audiences in the various ways of astronomy, and he reached out to as many people as possible by exploring a multitude of communication channels, from lectures to articles in newspapers and journals. Voiced often within newly created republican institutions, the praxis and the ideas of Melo e Simas helped to mold the new republican scientific ethos. By going beyond mere emphasis on scientism and positivism, usually taken to be the defining characteristics of the new republican ethos, this paper argues that science and the specificities of its multiple forms of communication were central to the way Melo e Simas shaped the republican ideology. Furthermore, popularization of science was used to legitimize the status of professional scientists at the same time that it helped reinforce their institutional setting, still to be negotiated in the forthcoming decades through a complex process which deserves further historical analysis. (shrink)

ArgumentThis paper examines the field network – linking together lay observers in geographically distributed locations with a central figure who aggregated their locally produced observations into more general, regional knowledge – as a historically emergent mode of knowledge production. After discussing the significance of weather knowledge as a vital domain in which field networks have operated, it describes and analyzes how a more robust and systematized weather observing field network became established and maintained on the ground in the early twentieth (...) century. This case study, which examines two Kansas City-based local observer networks supervised by the same U.S. Weather Bureau office, demonstrates some of the key issues involved in maintaining field networks, such as the role of communications infrastructure, especially the telegraph, the procedures designed to make local observation more systematic and uniform, and the centralized, hierarchical power relations that underpinned even a low-status example of knowledge production on the periphery. (shrink)

By the early years of the twentieth century, astronomers regarded photography as one of the most valuable tools at their disposal, a technique which not only provided an accurate and reliable representation of astronomical phenomena, but also radically changed the role of the astronomical observer. Herbert Hall Turner, professor of astronomy at Oxford, wrote in 1905: ‘The wonderful exactness of the photographic record may perhaps best be characterised by saying that it has revealed the deficiencies of all our other astronomical (...) apparatus – object-glasses and prisms, clocks, even the observer himself.’ H. C. Russell, government astronomer in Sydney, suggested that photography might in the future make the observer redundant: ‘In many cases the observer must stand aside while the sensitive photographic plate takes his place and works with the power of which he is not capable… I feel sure that in a very few years the observer will be displaced altogether.’ Such visions were not uncommon at the time, emanating from the trust invested in the photographic process after the spectacular achievements of the late nineteenth century. (shrink)

The reorganization of the astronomical community during the late nineteenth and early twentieth centuries, due to the rise of astrophysics, was seen by some scientists as an opportunity to join an international community of prestigious researchers. This was the case of astronomers such as Josep Comas i Solà, who publicly argued with Eugène Michel Antoniadi during the first decades of the twentieth century about the veracity of astronomical observations and theoretical conclusions on Mars and Jupiter. Their priority claims and public (...) disputes have to be understood in a new context that provided an exceptional opportunity for amateur and professional astronomers both to play an active role in the most interesting scientific debates of these years and to gain prestige, legitimacy and power. (shrink)

ABSTRACT The contribution of amateur scientists to the International Geophysical Year (IGY) was substantial, especially in the arena of spotting artificial satellites. This article examines how Fred L. Whipple and his colleagues recruited satellite spotters for Moonwatch, a program for amateur scientists initiated by the Smithsonian Astrophysical Observatory (SAO) in 1956. At the same time, however, the administrators with responsibility for the IGY program closely monitored and managed—sometimes even contested—amateur participation. IGY programs like Moonwatch provided valuable scientific information and gave (...) amateurs opportunities to contribute actively to the research of professional scientists. Moonwatch, which operated until 1975, eventually became the public face of a vast satellite‐tracking network that expanded the SAO’s global reach and helped further Whipple’s professional goals. Understanding amateurs’ interactions with the professional science community enables us better to understand the IGY as a phenomenon that enlisted broad participation and transcended traditional boundaries between professional and amateur scientists. (shrink)