U.S. Air Force personnel from The National Air and Space Intelligence Center observe a hovercraft made by 312th Training Squadron students from scrap and 3-D printed parts on Goodfellow Air Force Base, Texas, August 13, 2019. Students are challenged to think outside the box and break things to improve and create other things. (U.S. Air Force photo by Airman 1st Class Ethan Sherwood/Released)