Remote-controlled (RC) cars are lined up at the starting line, their drivers awaiting the green light, during the drag races at the sixth annual Full-Throttle STEM® at Eldora Day in Rossburg, Ohio, May 8. Students from seven local high schools showcased their STEM-related projects, including their modeling and simulation-based work, and then competed in an RC car race at Eldora Speedway. (U.S. Air Force photo/Richard Eldridge)