Alchemy and the history of science. Introduction

Alchemy is part of the cultural experience of early modern Europe and yet has had to overcome problems of demarcation to be considered relevant to the history of science. This essay considers historiographical and methodological issues that have affected the gradual demarginalization of alchemy among attempts to explain, and find things out about, nature. As an area of historical study, alchemy relates to the history of science as part of an ensemble of practices that explored the natural world through natural philosophy and speculative traditions and by functioning as a nexus of social and intellectual life.     

Hitting a cricket ball: what components of the interceptive action are most linked to expertise?

Differences in interceptive skill between highly skilled and lesser skilled cricket batsmen were examined using a batting task that required participants to strike front-foot drive strokes from a machine-projected ball to a specified target. Task difficulty was manipulated by varying the width of the bat (normal, half, and third width) and target accuracy, and quality of bat-ball contact was monitored along with temporal and sequential elements of the hitting action. Analyses revealed that the highly skilled batsmen were distinguishable from less skilled counterparts by their higher accuracy under the normal and half-width bat conditions, significantly earlier initiation and completion of the front-foot stride, greater synchronization of the completion of the front-foot stride with the commencement of the downswing of the bat, and consistent timing of downswing relative to ball bounce and impact. In keeping with studies of other hitting sports, temporal and spatial coupling of the downswing to ball bounce to help minimize temporo-spatial error at the point of interception appeared critical to skilled performance. Implications for the understanding of interception and for coaching practice are briefly discussed.     

Viscoelastic impact characterisation of solid sports balls used in the Irish sport of Hurling

In recent years, variability in behaviour of the sliotar, a small leather-bound ball used in the Irish sport of hurling, has become evident in championship matches. The inconsistency in performance was attributed to the range of constructions and material compositions of currently approved ball types. With a view to adopting a standard core, a new methodology has been commissioned to assess the dynamic impact behaviour of approved sliotar cores. In this paper, the relationship between the dynamic stiffness and the coefficient of restitution is presented with regard to material properties, ball construction and viscoelastic strain and strain-rate dependencies. The modern polymer ball types were shown to exhibit strain-rate sensitivity, while the performance of the traditional multi-compositional ball types exhibited lesser strain-rate dependence. The traditional balls types were shown to be up to 2.5 times stiffer than the modern ball types, with this finding having implications for ball energy dissipation.     

‘Carry On’: The Response of the Victorian Football League to the Challenges of World War II

The Victorian Football League (VFL) was formed following an acrimonious split with the Victorian Football Association at the end of the 1896 season. Despite being based around clubs located only in Melbourne and Geelong, the VFL soon became Australia's premier football competition. Although much has been written about League players who served in the armed forces during the two world wars, less attention has been given to identifying the issues and challenges that football competitions, and the VFL in particular, had to address if they were to continue to function during times of military conflict. Trials faced by organisers of the code were logistical, political and moral. Player and administrator shortages and a restricted number of venues to play at, were the most obvious challenges. The Australian government assumed control of manpower and resources in January 1942 and placed many restrictions on discretional activities of the population. In this context, a general feeling was that there was little room for organised major sporting competitions because they could detract from the war focus. The way society reacted to the constraints shaped football's direction, and the VFL had to interpret government policy and read the mood of the public before deciding whether to continue playing. In the end, the League, despite criticism from some quarters for continuing its competition, sided with the prevailing view that the public needed a diversion to allow them some relaxation from the pressure of war. This article discusses how the VFL responded to a number of key issues during the critical period between 1942 and 1944.     

Proposing application of results in sport and exercise research reports

The application of sport and exercise research findings to practice requires careful interpretation and integration of evidence. This paper reviews principles of evidence-based practice and the application of research in sports and exercise, in order to provide recommendations on developing appropriate application sections in research reports for sport and exercise journals. The strength of recommendations for application fall into one of four levels, with potential applications qualified as strong, limited, preliminary, or hypothesized. Specific limitations that should be discussed in framing recommendations for practice are also noted for each of these levels that should be useful for authors, and for practitioners and clinicians in interpreting these recommendations.