Tech Sgt. Matthew Heise, 60th Maintenance Group qualification training package instructor, sodders a pair of night vision goggles, an action that requires focus and a steady hand, Jan.19, 2017, at Travis Air Force Base, Calif. Heise is a member of the Phoenix Spark program and passionately undertakes any project that he tasks himself with. (U.S. Air Force photo by Airman 1st Class Jonathon D. A. Carnell/Released)
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