Amazing Acoustic Architecture
These are various forms of acoustic architecture from around the world used for varying purposes from defence to performance. feel free to leave a comment below.
1. Acoustic Architecture: The Denge Acoustic Mirrors
In the Denge region in Kent, England. Huge concrete structures have been left from the early 1900's. Their purpose is to listen for plane engines in the sky coming from out at sea and built by the RAF (Royal Air Force)
This was conceived around 1915. All 3 were built before the invention of radar and severed to be prototypes for similar mirrors to be placed all along the southern coast to protect from aerial attacks. The huge dishes were built facing out to sea along the English channel and would act exactly like parabolic reflectors used today.
The wall on the left of the picture was one of the latest designs at the time known as a hemispheric wall. The wall is 60 metres wide and 10 metres tall. Anyone standing in the focal point of this massive acoustic architecture could hear a plane engine roughly 10Km away and with the use of a microphone triple that distance.
These projects where abandoned in 1930 with the invention of radar and the growing speed of planes making them obsolete. Very impressive and still kept in reasonable condition to this day.
2. Acoustic Architecture: Stonehenge
Watching the video above will give you some indication of the precise placement of these massive stones to give you an idea of how music and acoustics were treated over 5,000 years ago. Stonehenge is still being studied for reasons for the placement and acoustic architecture qualities. Preliminary research and theories suggest it was build to resonate drum beats in an act to tune the mind to the earth's pulses, of which the highest harmonic being 432hz.