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2. Siren (alarm) - Wikipedia

   en.wikipedia.org/wiki/Siren_(alarm)

   The SAE International Emergency Warning Lights and Devices committee oversees the SAE emergency vehicle lighting practices and the siren practice, J1849. [a] This practice was updated through cooperation between the SAE and the National Institute of Standards and Technology. Though this version remains quite similar to the California Title 13 ...

3. Aztec death whistle - Wikipedia

   en.wikipedia.org/wiki/Aztec_death_whistle

   The whistle's sounds, analyzed through its functioning mechanism, have been noted to resemble the sound of wind and fall within the human hearing sensitivity range. Experimental models of death whistles have been constructed and tested to explore hypotheses and for use in conferences and demonstrations, given that the original ancient ...

4. Civil defense siren - Wikipedia

   en.wikipedia.org/wiki/Civil_defense_siren

   Federal Signal Model 5 in Ballston Spa, New York, U.S.. Sirens are sometimes integrated into a warning system that links sirens with other warning media, such as the radio and TV Emergency Alert System, NOAA Weather Radio, telephone alerting systems, Reverse 911, Cable Override, and wireless alerting systems in the United States and the National Public Alerting System, Alert Ready, in Canada.

5. Travel safety: 17 CIA tips, advice to think like a spy on ...

   www.aol.com/travel-safety-17-cia-tips-161432946.html

   This enables embassy staff to contact you if there’s an emergency or unfolding crisis. U.S. citizens can also sign up with the State Department’s Smart Traveler Enrollment Program . CIA tip ...

6. General emergency signal - Wikipedia

   en.wikipedia.org/wiki/General_Emergency_Signal

   The signal is composed of seven or more short blasts followed by one long blast on the ship's whistle and internal alarm system. [1] Within 24 hours of embarkation of all passengers, the crew will conduct a mandatory muster drill in which the General Emergency Signal is sounded. The purpose of the drill is to educate passengers of emergency ...

7. 35 of the very best gifts for seniors that they'll actually ...

   www.aol.com/lifestyle/best-gifts-for-seniors...

   Relieve tension and melt away stress with Amazon's No. 1 best-selling foot massager. ... It may not have all the bells and whistles of some pricier models, but its combination of features, comfort ...