Madison County uses targeted tornado sirens to warn outdoor residents of storms, emphasizing multiple alert sources.

For this project, instead of trying to quiet his blower, he decided to make one as loud as possible in the form of an air raid siren. The basic idea behind [Matthias]’ air raid siren is to make ...

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 ...

Most drivers are familiar with the blaring sirens of an ambulance and what to do when they hear it. The loud sirens warn drivers to move out of the way as best they can because the ambulance is ...