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Master Sgt. Regina Rector, occupational safety manager with the 446th Airlift Wing demonstrates how to use a cardboard tube modified to observe a solar eclipse. Rector, an amateur astronomer and a reserve citizen airman, gave a class at the McChord Library on Joint Base Lewis-McChord in preparation of the total solar eclipse on August 21, 2017. (U.S. Air Force photo by David L. Yost)
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