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...psychology and biology of addiction by subjecting a recovering alcoholic and his sister, a non-addict, to a range of physiological, psychological and genetic studies. The results raise interesting questions about brain patterns underlying addictions, and how addiction should be treated. This material forms part of The Open University course SD805 Issues in brain and...

...Forensic Engineering Dr Pete Lewis explains how he believes the dynamic effects of vibration and the inappropriate use of cast iron, caused fatigue to the Tay Bridge and were responsible for its collapse. The Hatfield accident Professor Roderick Smith explains the cause of the Hatfield accident while others look at how the flaws of the Tay Bridge are still used as lessons...