The autovibrations of the bridge over Volga river in the city of Volgograd(Russia) were filmed (not by me) today on 05/21/2010. The amplitude reachedabout 1 m. The bridge opening was just six months ago...
Apparently, either the bridge frame drag was too high or torsional stiffness / damping too low.
This lecture reviews the tumultuous changes taking place in the nuclear industry; from its enthusiastic beginnings, through the darker days and on to the current resurgence. It explores the future of nuclear power as a major solution to energy security and climate change issues.
Dr Ulrich Eichhorn's lecture covers the original design and development of the Bentley V8 engine, from its introduction in 1959, in their S2 model, through to its present day form in the newly launched Bentley Brooklands coupe.
With contributions from several senior figures involved with the engine's creation and evolution over the last 50 years, the talk will describe how a well thought out concept and its careful execution have carried the design through to 2009, while other contemporaries have long since fallen by the wayside.
Hi i am asha working for PhD using FEM technique ,i am writing my code in c++ and facing problem in frontal solver in backspacing stage.My pointer do not read the data from begining of the last line.Since one year i am struck-up at this stage.Can you suggest what is equivalent commond od back space in c++.Can you give me coding for frontal solver in C++.
While preparing a talk on iMechanica , I came across the following video "Information R/evolution" by Michael Wesch, an assistant professor of anthropology at Kansas State University. This thought provoking video echoes a recent comment on "The future of knowledge?"
Recently I saw an animation
named “The inner life of the cell”, which was made by Howard Hughes Medical Institute and Harvard University Biovision. It can be watched online only:
I just remembered another video that I had seen some time ago. Many of you have probably seen it but here it is for those who have not. (The original page where I found it is http://www.maniacworld.com/Laminar-Reverse-Flow.html.)
A video that shows how some common couplings work. It's an advertisement but interesting nevertheless. Does anyone know how the Thomson coupling works and what its main drawbacks are? It seems a bit complex and will probably have a higher rate of failure than simpler geometries - but maybe not?
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