On May 31 Diamond Geezer (who writes a very good London blog) “…found an acoustic sound mirror at Abbott’s Cliff”.
More details of the Abbot’s Cliff sound mirror
This entry was posted on Wednesday, June 2nd, 2010 at 12:27 and is filed under Individual mirrors, Links, Sound mirrors. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
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A forerunner of radar, acoustic mirrors were built on the south and northeast coasts of England between about 1916 and the 1930s. The ‘listening ears’ were intended to provide early warning of incoming enemy aircraft.
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