The Whispering Wall of the Barossa Reservoir and Its Amazing Parabola Sound Effect
When the Whispering Wall was built over a 100 years ago, no one had a clue about its amazing acoustic properties. The concrete dam was constructed by about 400 workers over the South Parra River in Barossa Valley between 1899 and 1902. The dam holds back the 4,515-mega liter Barossa reservoir that supplies water to […]