Sound mirrors
Esquema
Jerarquía
Built Environment (Hierarchy Name) > Single Built Works (Hierarchy Name) > single built works (Built Environment) > <single built works by specific type> > <single built works by function> > communications structures
Descripción
Concrete structures of various forms, usually including a concrete dish linked to microphones, acting as early warning systems to detect and transmit the sound of incoming zeppelins; installed along the English coast facing Europe during the early 20th century.
URI original del concepto
Otros términos
- geluidspiegels [nl]
- sound mirror [en]
- sound mirror [es]
- mirrors, sound [en]
- acoustical sound mirrors [en]
- listening posts [en]
- geluidspiegel [nl]