Image: WW1AcousticMirrorKilnsea(PaulGlazzard)Jan2007
Description: WW1 Acoustic Mirror, Kilnsea, East Riding of Yorkshire, England. Rare 4.5 metre high concrete structure near Kilnsea Grange, northwest of Godwin Battery, a relic of the First World War. On the pipe in front of the acoustic mirror was a trumpet-shaped ‘collector head’, a microphone which could pick up the reflected engine sound of Zeppelins approaching from the sea. Wires passed down the pipe to a listener seated in a trench nearby with a stethoscope headset, who would try to determine the distance and bearing of any enemy airships.
Title: WW1AcousticMirrorKilnsea(PaulGlazzard)Jan2007
Credit: From geograph.org.uk
Author: Paul Glazzard
Permission: Creative Commons Attribution Share-alike license 2.0
Usage Terms: Creative Commons Attribution-Share Alike 2.0
License: CC BY-SA 2.0
License Link: https://creativecommons.org/licenses/by-sa/2.0
Attribution Required?: Yes
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