File:Denge acoustic mirrors -March2005.jpg
Denge_acoustic_mirrors_-March2005.jpg (640 × 480 pixels, file size: 99 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:40, 31 December 2006 | 640 × 480 (99 KB) | Euchiasmus | Listening Ears near to Greatstone-on-Sea, Kent, Great Britain. These are concrete listening ears built for the war. Aeroplanes flying across the channel could be heard by observers positioned near these "ears". ((geograph|000166|Paul Russon)) |
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