Air Force Tech. Sgt. Brian Brown, 60th Maintenance Squadron, demonstrates a laser to Dr. Richard Joseph, Chief Scientist of the United States Air Force, Washington, , during his visit to Travis Air Force Base, Calif., July 12, 2018. Joseph toured David Grant USAF Medical Center, Phoenix Spark lab and visited with Airmen. Joseph serves as the chief scientific adviser to the Chief of Staff and Secretary of the AF, and provides assessments on a wide range of scientific and technical issues affecting the AF mission. ( Air Force photo by Louis Briscese)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: .., 60, af, air, amc, amw, amw/pa, chief, command, force, mobility, scientist, travis, usaf