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Sandia is a multiprogram engineering and science laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the US Department of Energy's National Nuclear Security Administration. Sandia's enduring mission is to provide engineering and science support for America's nuclear weapons stockpile. Sandia applies cutting-edge technologies in integrated microsystems, computer modeling and

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Skilled do-it-yourselfers and home improvement professionals share their knowledge in photo-packed articles. Subjects range from simple repairs to major remodeling projects.