Boy Scout Nuclear Science Merit Badge
Luke Pendergrast, a Boy Scout from Troop 330 in Ormond Beach, Fla., carefully molds black felt in a petri dish to create a cloud chamber to visualize condensation trails left by ionizing radiation. Pendergrast attended the Nuclear Science Merit Badge event hosted by the Air Force Technical Applications Center, Patrick AFB, Fla,. March 31, 2018. (U.S. Air Force photo by Susan A. Romano)