Tuesday, 13 October, 2026
Britain’s Giant Concrete "Ears" That Listened for War
By TechShots Studio
Built along the English coast after World War I, massive concrete "sound mirrors" served as an early acoustic warning system to detect incoming enemy bombers before radar existed. However, as aircraft speeds surged toward the late 1930s, these innovative structures quickly became obsolete and were abandoned in 1939, leaving behind eerie coastal relics of early military engineering.
Read full story at TIMES OF INDIA