Lt. Gen. Thomas Owen is briefed by Wayne Isdahl from the 711th Human Performance Wing at Brooks City-Base, Texas, on capabilities of the U.S. Air Force School of Aerospace Medicine centrifuge, as the general sits in the centrifuge's gondola. The centrifuge is used to train pilots and aircrew members of the effects of high g-forces on the human body and how to handle those forces. (U.S. Air Force photo/Joe N. Wiggins)