The auditory pathway visualises the movement of invisible sound waves through the air. Go on, take a look and listen carefully! In contrast to the previous room, our perception is focussed on a single sound impulse.
Opposite the wave tube, the sound's journey is visually traced on five screens. Learn how sound travels from the outer ear to the brain:
1. Outer ear with auditory canal and eardrum: at its longest diameter, the eardrum measures 9-10 mm
2. Middle ear with its tiny hammer, anvil and stirrup bones:incidentally, these are the smallest bones in the body
3. Inner ear and cochlea: location of the balance organ
4. Hair cells: mechanical stimuli are converted into nerve activity
5. Auditory nerve:the auditory nerve carries sound to the brain so that we can hear it
at 20 degrees, sound travels through the air at a speed of 343 metres per second? And travels through water at a speed of 1,480 meters per second – so over 4 times as fast!