Dual towline spin-recovery device

A device which corrects aerodynamic spin is described wherein a parachute exerts antispin forces on an aircraft to effect spin recovery. The dual parachute towlines and are each attached to the parachute and are attached to the rear fuselage equidistant to and on opposite sides of the aircraft centerline. As the parachute is deployed during spin, the parachute force acts through only the towing and exerts its force outboard of center on the aircraft. As a result, the parachute exerts not only an antispin torque, but additionally causes the aircraft to roll, creating a gyroscopic antispin rolling moment. The additional antispin rolling moment facilitates spin recovery by permitting a relatively smaller parachute to accomplish spin recovery equivalent to that of a larger parachute attached to the center of the rear fuselage

Solar X-rays - A comparsion with microwave radiation

OSO-I data analysis for comparison of solar X-rays and microwave radiatio

Application of distorted models in developing scaled structural models

In the design and development of dynamically similar structural models a distorted model of the panel is used. The panel thickness is made larger than that dictated by geometric scaling, and the mass of the panel is decreased by adding mass to the surface of the panel to counteract the additional stiffness obtained by the thickness increase

From State Terrorism to Petty Harassment: A Multi-Method Approach to Understanding Repression of Irish Republicans

Beginning in 1969, the Provisional Irish Republican Army conducted a paramilitary campaign designed to unite Northern Ireland with the Republic of Ireland, creating a 32 county democratic socialist republic. The Provisional IRA’s campaign officially ended in 2005, but former Provisionals and others who followed them continue to pursue armed struggle to this day. The Provisional IRA and its successors are part of the centuries old and highly documented “resistance” of Irish people to British interference in Ireland. Over those centuries, state authorities ‒ the British, Irish, and Northern Irish governments ‒ have “resisted” the dissent of Irish Republicans. This paper draws on three different research methodologies available to social scientists ‒ counts of events that inform quantitative analyses, intensive interviews/oral histories, and visual sociology ‒ and argues that a multi-method approach will provide a better understanding of the dynamics of “resistance” in Ireland and, more generally, social protest

KULTUR: showcasing art through institutional repositories

Showcasing work has always been at the heart of the arts community, whether it be through an exhibition, site-specific installation or performance. Representation of the original work has also been important and use of print-based options like exhibition catalogues is now complemented by websites and multi-media friendly services like Flickr and YouTube and Vimeo. These services also provide options for sharing born-digital material. For those working in higher education there is a need to profile both the personal and the institutional aspects of creative outputs. The KULTUR project created a model for arts-based institutional repositories and it is hoped that this approach will be useful for other arts institutions

Crystal growth of sulfide materials from alkali polysulfide liquids

The fluids experiment system was designed for low temperature solution growth, nominally aqueous solution growth. The alkali polysulfides, compositions in the systems Na2S-S and K2S-S form liquids in the temperature range of 190 C to 400 C. These can be used as solvents for other important classes of materials such as transition metal and other sulfides which are not soluble in aqueous media. Among these materials are luminescent and electroluminescent crystals whose physical properties are sensitive functions of crystal perfection and which could, therefore, serve as test materials for perfection improvement under microgravity conditions

Designing a visible city for visually impaired users

This paper reports on an ongoing doctoral research project which aims to identify the main barriers to access within the built environment for persons with a visual impairment. The research seeks to investigate whether these barriers are common for all types of visual impairment and degree of vision loss and if so, what inclusive design solutions can accommodate the needs of the majority of visually impaired users. An access audit has been conducted within Glasgow city centre which sought to quantify the number and type of hazards present within a typical built environment. This was followed up by a questionnaire which asked participants to rate factors which may prevent them from making independent visits to their nearest city centre including psychological factors, physical features and obstructions resulting from the presence of street furniture. Participants also indicated the colours and contrasts which they find easiest to detect within the built environment. These findings will be used to inform the creation of a new set of design guidelines to assist designers, architects and urban planners as to how they can provide more accessible and inclusive environments for the visually impaired population

"A most exquisite fellow" — William White and an Atlantic world perspective on the seventeenth-century chymical furnace

The seventeenth-century technologist and colonist William White (ca. 1600–73) has been cited as an alchemical tutor to Gabriel Plattes and George Starkey, and hailed as an early modern “wizard of industrial efficiency.” This study — the first that focuses on White individually — pays particular attention to White’s extraordinary reputation for furnace design and manufacture. By examining the sources of knowledge and social connections that enabled White to acquire and disseminate his knowledge of metallurgy, the authors develop a genealogy of fornacic design that extends from the continent to the Atlantic world and back again, connecting White to better known figures such as Cornelis Drebbel and Robert Boyle. By foregrounding, through White, the technology of early modern alchemy, the authors also hope to emphasise the importance of practical craft in the development of the chemical arts

International Idealism Meets Domestic-Criminal-Procedure Realism

Though international criminal justice has flourished over the last two decades, scholars have neglected institutional design and procedure questions. International-criminal-procedure scholarship has developed in isolation from its domestic counterpart but could learn much realism from it. Given its current focus on atrocities like genocide, international criminal law\u27s main purpose should be not only to inflict retribution but also to restore wounded communities by bringing the truth to light. The international justice system needs more ideological balance, stable career paths, and civil-service expertise. It should also draw on the American experience of federalism to cultivate cooperation with national authorities and select fewer cases for international prosecution. Revised plea bargaining and sentencing rules could learn from American experience and pitfalls, husbanding scarce resources and minimizing haggling, yet still buying needed cooperation. Finally, in blending adversarial and inquisitorial systems, international criminal justice has jettisoned too many safeguards of either one. It should reform discovery, speedy-trial rules, witness preparation, cross-examination, and victims\u27 rights in light of domestic experience. Just as international criminal law can benefit from domestic realism, domestic law could incorporate more international idealism and accountability, creating healthy political pressures to discipline and publicize enforcement decisions