Ice Observations by the Tiros II Satellite and by Aircraft

Discusses selected TIROS II photography in connection with simultaneous visual and photographic aerial coverage of Gulf of St. Lawrence ice conditions in Jan. and Mar. 1961. The narrow-angle camera and the 48 degrees inclination of the orbit tended to limit the reconnaissance to the southern fringe of winter sea-ice, though results suggest the feasibility of satellite photography for reconnaissance in the Arctic

The Sudbury Neutrino Observatory

The Sudbury Neutrino Observatory is a second generation water Cherenkov detector designed to determine whether the currently observed solar neutrino deficit is a result of neutrino oscillations. The detector is unique in its use of D2O as a detection medium, permitting it to make a solar model-independent test of the neutrino oscillation hypothesis by comparison of the charged- and neutral-current interaction rates. In this paper the physical properties, construction, and preliminary operation of the Sudbury Neutrino Observatory are described. Data and predicted operating parameters are provided whenever possible.Comment: 58 pages, 12 figures, submitted to Nucl. Inst. Meth. Uses elsart and epsf style files. For additional information about SNO see http://www.sno.phy.queensu.ca . This version has some new reference

Complexity and Social Movements: Process and Emergence in Planetary Action Systems

NoThe rise of networked social movements contesting neo-liberal globalization and protesting the summits of global finance and governance organizations has posed an analytical challenge to social movement theorists and called into question the applicability to this global milieu of the familiar concepts and heuristics utilized in social movement studies. In this article, we argue that the self-defining alter-globalization movement(s) might instead be engaged with as an expression and effect of global complexity, and we draw upon a `minor¿ literature in social movement studies that includes Gregory Bateson, Gilles Deleuze and Alberto Melucci to illustrate our claims. This article uses a Deleuzian reading of complexity to describe the phase space of the `movement of movements¿, and its perturbation of global civil society through the iteration of sense-making processes (reflexive framing) and the exploration of singularities inhering in social movement `plateaux¿. Those transnational gatherings, protests and social forums facilitated by computer-mediated communications and the advent of unprecedented mobility which constitute a `shadow realm¿ that remains largely invisible to political exchange theories operating within the conceptual confines of the nation-state

Shock wave physics and detonation physics – a stimulus for the emergence of numerous new branches in science and engineering

In the period of the Cold War (1945−1991), Shock Wave Physics and Detonation Physics (SWP&DP) – until the beginning of WWII mostly confined to gas dynamics, high-speed aerodynamics, and military technology (such as aero- and terminal ballistics, armor construction, chemical explosions, supersonic gun, and other firearms developments) – quickly developed into a large interdisciplinary field by its own. This rapid expansion was driven by an enormous financial support and two efficient feedbacks: the Terminal Ballistic Cycle and the Research & Development Cycle. Basic knowledge in SWP&DP, initially gained in the Classic Period (from 1808) and further extended in the Post-Classic Period (from the 1930s to present), is now increasingly used also in other branches of Science and Engineering (S&E). However, also independent S&E branches developed, based upon the fundamentals of SWP&DP, many of those developments will be addressed (see Tab. 2). Thus, shock wave and detonation phenomena are now studied within an enormous range of dimensions, covering microscopic, macroscopic, and cosmic dimensions as well as enormous time spans ranging from nano-/picosecond shock durations (such as produced by ultra-short laser pulses) to shock durations that continue for centuries (such as blast waves emitted from ancient supernova explosions). This paper reviews these developments from a historical perspective