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            AIR FORCE PHOTOS
   140718-F-QZ836-001
                David McGibney educates teachers how to use cost effective materials to present science to the youth by dropping a cement puck to test the stability of the binding fibers added to the concrete as part of an ASM Materials Camp presentation July 18, 2014, in Washington, D.C. The camp brought together middle school educators from the local area to explore new ideas in low-budget science experiments to highlight the science, technology, engineering and math fields to classes across the U.S. McGibney is an ASM master teacher. (U.S. Air Force photo/Staff Sgt. Carlin Leslie)

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                        Staff Sgt. Carlin Leslie
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