37 Stereo hearing

This exhibit shows how our ears determines the direction to a sound source. The brain calculates the direction  of a sound wave by comparing the relative time of arrival to each ear. 

Two visitors are needed. One is sitting holding the ear caps close to her ears. The other ticks a stick near the middle of the tube. The sitting person can easily identify on which side of the middle of the tube her friend is ticking the stick. 

Maintenance: No
Material: Wood
Colour: Green, red
Width: 850 mm
Length: 760 mm
Height: approx 2520 mm