Plan Ecosystem Fact Sheets 1. When something vibrates, it makes the air around it vibrate. Sound in the form of vibrating air reaches the eardrum and causes the eardrum to vibrate.
Tiny bones receive the vibrations from the eardrum and pass the vibrations to the cochlea.
The cochlea changes the vibrations to electrical messages that are carried to the brain by nerves. The brain interprets the message as what we call sound. Introduction Eglin Air Force Base is the largest air force base in the free world, including 724 square miles of land area and about 130,000 square miles of controlled airspace overlying land and water. It is the main Air Force facility for conducting developmental and operational testing of a variety of conventional weapons and weapon systems. Eglin personnel are also involved in a variety of training activities designed to maintain a high degree of operational readiness.