Civil defense siren
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 Federal Signal Thunderbolt 1003 Civil Defense siren. |
A civil defense siren (also referred to as an air raid, civil defence, tornado, tsunami, fire, flood, weather, time, curfew, earthquake, storm, police, emergency, hurricane, or other outdoor warning siren/whistle/horn/alarm) is a mechanical or electronic device (modern-day sirens are electrically powered whether they are electronic or electro-mechanical) for generating sound to provide warning of approaching danger and sometimes to indicate when the danger has passed. In some areas in the United States, civil defense sirens may sound in the late morning and early afternoon on a regular basis.
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| Air Raid Sirens – outdoor warning siren website Air Raid Sirens – outdoor warning siren website www.airraidsirens.com - Web |
| Civil Defense Museum – Overview of sirens since th... Civil Defense Museum – Overview of sirens since their inception www.civildefensemuseum.com - Web |
| Los Angeles air raid sirens – Pictures of unused n... Los Angeles air raid sirens – Pictures of unused nuclear-era civil defense sirens still extant in Los Angeles, California home.earthlink.net/~mgiffin/airraid/ - Web |
Gallery for «Civil defense siren»
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| The Siren Archive – Over 1,000 siren photographs c... The Siren Archive – Over 1,000 siren photographs coupled with a few recordings from around the world www.jmarcoz.com/sirens/sirenarchive.htm - Web |
| The World's loudest and largest sirens ever The World's loudest and largest sirens ever www.victorysiren.com/x/index.htm - Web |
| "Tocsin B", Canada's dry run of its Nuclear Warnin... "Tocsin B", Canada's dry run of its Nuclear Warning System from 1961 www.cbc.ca/.../tocsin-b---this-is-not-an-emergency.html - Web |
| Toronto Star Toronto Star www.thestar.com/News/article/259463 - Web |
| Michigan Civil Defense Museum Michigan Civil Defense Museum www.michigancivildefense.com - Web |
| Old German World War II Air Raid Siren YouTube Old German World War II Air Raid Siren YouTube www.youtube.com/watch?v=MvSAs2oa2O0&feature=related - Web |
| British World War II Air Raid Siren with all-clear... British World War II Air Raid Siren with all-clear YouTube www.youtube.com/watch?v=erMO3m0oLvs&feature=related - Web |
