First Lt. Danielle Zidack, 34th Bomb Squadron weapon systems officer, teaches children how to build toy gliders during the 2016 Aviation Day at the Discovery Center in Pierre, S.D., Jan. 27, 2016. Throughout the event, children had the opportunity to build toy gliders while meeting with people from various aviation careers. (U.S. Air Force photo by Senior Airman Rebecca Imwalle/Released)