A Minimum-Impact Method for Measuring Corrosion Rate of Steel-Hulled Shipwrecks in Seawater

Current research on USS Arizona is focused on a minimum-impact technique for calculating corrosion rate of the battleship's steel hull by analysing physical and chemical properties of marine encrustation covering the exposed hull. An equation is derived that allows concretion thickness, density, and total iron content to be used to calculate corrosion rate of steel hull plate.
© 2006 The Authors     

Historical Consensual Norms in the High Court

There is a substantial political-science literature that discusses the notion of consensual norms in the US Supreme Court. Most of this literature assumes that consensual norms exist, rather than proving their existence. Caldeira and Zorn ( American Journal of Political Science 42: 874-902, 1998) use the method of cointegration developed in econometric time-series analysis to prove the existence of a single consensual norm in the US Supreme Court. This study applies cointegration analysis to historical time-series data on dissenting and single judgments to examine whether there is a single consensual norm in the High Court of Australia. The study finds that a single consensual norm does not underlie decision making in the High Court. This result is explained on the basis that the institutions underpinning decision making and the approach to decision making are different between the Australian High Court and the US Supreme Court.     

Recording and Analysis of Ship Graffiti in St Thomas’ Church and Blackfriars Barn Undercroft in Winchelsea,East Sussex,UK

Two assemblages of ship graffiti were recorded using Reflectance Transformation Imaging in the ancient port town of Winchelsea. The engravings show characteristics common to most medieval ship graffiti in England, while displaying different levels of detail, which encouraged a nuanced interpretation. It is suggested that the ship graffiti demonstrate a multifaceted relationship with the sea. The St Thomas’ church graffiti could have been a means of spiritual protection and a devotional practice that cuts across different communities of practice and social groups. The seascape in Blackfriars Barn undercroft can be interpreted as an occasion of informal remembrance of the mustering of a large naval fleet before setting out.     

Refinement and Respectable Consumption: the Acceptable Face of Women's Smoking in Britain, 1918–1970

This article examines British women's magazines and the insights that they can provide into the relationships between social class, gender and respectable feminine consumption. The discussion focuses on magazine representations of women who smoked cigarettes in the years between 1918 and 1970 with particular attention to the period up to 1950. Magazine images reveal the visual parameters of respectable smoking for women between 1918 and 1970 and the centrality of refinement to respectable consumption. However, while respectable smoking was always visibly associated with refinement, the absence of working‐class smokers 1918–1970 suggests that smoking was visibly inconsistent with refined and respectable working‐class femininity.     

Investigating archaeological site formation processes on the battleship USS Arizona using finite element analysis

Scientists from the National Institute of Standards and Technology (NIST) worked in a collaborative partnership with archaeologists from the National Park Service's (NPS) Submerged Resources Center (SRC) to develop a finite element model (FEM) of the battleship USS Arizona. An FEM is a computer-based engineering model that calculates theoretical stresses, propagation of force, and shape changes to a structure under loads using thousands or even millions of individual elements whose individual responses are well understood. NIST researchers created an FEM of an 80 ft. (25 m) midships section of the Arizona site to analyze archaeological site formation processes on the sunken battleship, in particular to determine the current condition of the wreck and predict its future strength and structural integrity as it continues to corrode. The NIST's FEM study is one aspect of a larger project under the direction of the NPS, the USS Arizona Preservation Project, whose goal is to determine the nature and rate of corrosion affecting USS Arizona, and to model its long-term structural deterioration. The FEM incorporates findings from other key components of the USS Arizona Preservation Project, such as steel hull corrosion rates, structural surveys of the vessel, sediment compaction studies, and analysis of the concretion that covers the ship's hull, into a single tool that is being used to predict how the wreck will degrade in the future.