Medicine: Audible Tinnitus

Army doctors in Oklahoma City were puzzled. When Jack Husband, a healthy strapping, 20-year-old sophomore from Southwestern State College, presented himself for his pre-induction physical, they could hear a faint, metallic ticking that seemed to come from inside Jack's head. It was clearly audible four inches from his left ear; it could be heard, but more faintly, on the other side. When Jack insisted that the ticking had never bothered or pained him, the doctors passed him, and he now expects to be called for limited duty at the end of his college...