Friday 26th August 2016

Acoustic Mirrors

These acoustic mirrors were built as early warning devices around the coasts of Great Britain, with the aim of detecting airborne invasions. These particular ones are considered the most famous and stand at Denge on the Dungeness peninsula and at Hythe in Kent. There brutal nature and considerable size appear out of kilter with there task of listening. They were only used for around 10 years before sonar was invented, here actual effectiveness was limited as planes were travelling fast enough that the warnings would come to late….However I am a huge fan of these obsolete monoliths.

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