Good morning gang. Time to get this sober bus rolling, please hop aboard and join us for another sober day.
Here is something that I never knew. 'Sound mirrors', located near the southern shores of the county of Kent, UK. (I was born in Kent).
from:
Sound Mirrors - Romney Marsh, The Fifth Continent
"
The Sound Mirrors, also known as Acoustic Mirrors, Concrete Dishes or Listening Ears, are large concrete structures designed as an early warning system for Britain to detect enemy aircraft."
SoundMirrors.jpg