Emily Van Opdorpa North Stafford High School, Air Force Junior ROTC member, experiences the effects of the barany chair at the Aerospace and Operational Physiology Flight Training center, Dec. 14, 2012. The students were asked to perform various tasks while the chair was stopped and in-motion to demonstrate spatial disorientation. (U.S. Air Force photo/ Airman 1st Class Erin O’Shea)