The 'concrete acoustic mirror' (2)
There are various sound mirrors (acoustic mirrors) dotted around the world. Prior to World War II and the invention of radar, acoustic mirrors were built as early warning devices around the coasts of Britain, with the aim of detecting airborne...
There are various sound mirrors (acoustic mirrors) dotted around the world.
Prior to World War II and the invention of radar, acoustic mirrors were built as early warning devices around the coasts of Britain, with the aim of detecting airborne invasions.
The most famous of these devices still stand at Denge on the Dungeness peninsula and at Hythe in Kent.
Other examples exist in other parts of Britain (including Sunderland, Redcar, Boulby and Kilnsea) and in Malta.
There is quite a lot of information on the internet regarding them.