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Spiegel.de: Vergessene Technologien - SPIEGEL ONLINE
Mit haushohen Stahlbetonschalen lauschten die Briten in den Zwanziger- und Dreißigerjahren nach feindlichen Flugzeugen. Die Akustik-Experimente entlang der...
Spiegel.de: Listening for the Enemy: Giant Ears on the British Coast - SPIEGEL...
The enormous concrete shells are as tall as a house, and they were designed to listen for enemy aircraft in the 1920s and 30s. Pre-World War II acoustic...
The concrete blocks that once protected Britain - BBC News
www.bbc.com
Invented by Maj William Sansome Tucker and known as sound mirrors, their development continued until the mid-1930s, when radar made ...
Favourite comedians in Christmas shows - The West …
au.news.yahoo.com
Favourite comedians in Christmas shows This year’s crowd-favourite show will see international comedian Gary Sansome hit the stage as the master of ceremonies.
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