Pre-Radar Aircraft Detection
Here’s a fascinating bit of pre-WWII history: the network of concrete “sound mirrors” projected to be set up in Britian to detect the noise of incoming aircraft. The concept was rendered obsolete by the development of radar, but apparently these experiments did provide the British with useful experience which ultimately helped them to establish the Chain Home network of radar stations which proved crucial in winning the Battle of Britian.
I love the abstract forms, these still stand up well as modern sculptures. Thanks for sharing.
Very cool, reminds me of the efforts to catalog and examine all the fortifications and pillboxes of the Invasion Scare era.