I have seen the future, and it's this 3D-printed air raid siren honking its baleful tones over my neighbourhood as the waters rise
It's a cool project, anyway, and I'm all down for that. A combination of cheerfully-coloured 3D-printed components and RC ...
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The Loudest Air-Raid Sirens Ever Made Are HEMI-Powered (And Your City May Have One)
As a result, many systems were developed to survive a nuclear bomb, and perhaps none were more iconic or memorable than the incredibly loud air raid sirens used for drills. Although you wouldn't ...