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  2. Des Moines fire, EMS response times hinge on where you live ...

    www.aol.com/des-moines-fire-department-report...

    This benchmark includes an alarm-handling time of 1 minute, 4 seconds; a 1-minute, 20-second turnout time for the first unit; and a 4-minute travel time for the first unit, the report shows.

  3. 2018 Hawaii false missile alert - Wikipedia

    en.wikipedia.org/wiki/2018_Hawaii_false_missile...

    38 minutes. Location. Hawaii, United States. Type. False alarm. On the morning of January 13, 2018, an alert was accidentally issued via the Emergency Alert System and Wireless Emergency Alert System over television, radio, and cellular networks in the U.S. state of Hawaii, instructing citizens to seek shelter due to an incoming ballistic missile.

  4. Emergency Broadcast System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Broadcast_System

    Emergency Alert System. The Emergency Broadcast System (EBS), sometimes called the Emergency Action Notification System (EANS), was an emergency warning system used in the United States. It was the most commonly used, along with the Emergency Override system. It replaced the previous CONELRAD system and was used from 1963 to 1997, at which ...

  5. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    Readiness alarm (Beredskapslarm): a 5-minute pattern of 30 second tones separated by 15 second gaps. Used when an imminent danger of war is present. Air raid alarm (Flyglarm): a 1-minute pattern of 2 second tones separated by 2 second gaps. Sent when the threat of an air attack is imminent.

  6. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    Early versions erred by less than one minute per day, and later ones only by 10 seconds, very accurate for their time. Dials that showed minutes and seconds became common after the increase in accuracy made possible by the pendulum clock. Brahe used clocks with minutes and seconds to observe stellar positions. [112]

  7. 10 gadgets to help you sleep better - AOL

    www.aol.com/news/10-gadgets-help-sleep-better...

    The Wake-Up alarm will sound for 30 to 40 seconds and serves as a gentle wake-up for your brain, followed by an automatic snooze, completed by the Get-Up alarm. ... The Dodow has an 8-minute or 20 ...

  8. Fire alarm notification appliance - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_notification...

    European Siren for fire detection system. A fire alarm notification appliance is an active fire protection component of a fire alarm system. A notification appliance may use audible, visible, or other stimuli to alert the occupants of a fire or other emergency condition requiring action. Audible appliances have been in use longer than any other ...

  9. Quartz clock - Wikipedia

    en.wikipedia.org/wiki/Quartz_clock

    [55] [56] The Astron had a quartz oscillator with a frequency of 8,192 Hz and was accurate to 0.2 seconds per day, 5 seconds per month, or 1 minute per year. The Astron was released less than a year prior to the introduction of the Swiss Beta 21, which was developed by 16 Swiss Watch manufacturers and used by Rolex, Patek and Omega in their ...