It's a cool project, anyway, and I'm all down for that. A combination of cheerfully-coloured 3D-printed components and RC ...

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 ...

Air raid sirens were placed on the top of tall buildings - often police stations or similar - or on the top of poles if no suitable building could be found. In cities the sirens were powered ...

Salt Spring Island needed a fire siren which could be had only from the U.S. Dutifully, Volunteer Fire Chief Arthur Elliott filled out U.S. priority forms sent from Ottawa. Just as dutifully ...

Winnebago County owns and operates its 50 outdoor warning sirens. First installed in the 1950s, they were developed for Cold War air raid warnings, but in the 1970s, the sirens transitioned to ...

Winnebago County owns and operates its 50 outdoor warning sirens. First installed in the 1950s, they were developed for Cold War air raid warnings, but in the 1970s, the sirens transitioned to ...