Science View S2013E28 - High-Performance Hearing

Did you know that the human ear is really like a piece of high-precision machinery? There's the spiral-shaped cochlea, for a start. It features some unique cells called the outer hair cells, which appear to dance to the tune of sound vibrations. But why is it that the fainter the sound, the more they move? Join us to explore what the latest research has uncovered about our amazing sense of hearing.