Denge nr Dungeness  Thanks to Andrew Graham

The three early warning sound mirrors at Denge in Kent, (Photo: Michael Rich,

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Dating back to the pre-war period, these colossal sound mirrors were built along the coasts of England and France as an experimental listening ear – a defense mechanism. A lone sound technician would.

Denge

Aerial photograph of the sound mirrors at Denge, copyright Ian Ballard

Sunderland Sound Mirror

Early warning sound mirror locations, history and art

Redcar sound mirror

Redcar sound mirror


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