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I have seen the future, and it's this 3D-printed air raid siren honking its baleful tones over my neighbourhood as the waters riseSome people hear an air raid siren, and assume there must be an historical war re-enactment taking place nearby. I am the third type of person, who hears a 3D-printed air raid siren and ...
Air-raid siren sounds the warning. Air-raid sirens first sounded the warning in London in September 1939. They became an almost daily part of life in the capital a year later during the height of ...
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