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  2. Emergency Broadcast System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Broadcast_System

    These tapes contained scripted attack warnings, recorded siren sounds and other emergency information for use in the event of nuclear war. [6] [7] As official information began to emerge from various sources, non-primary stations were to broadcast it according to the following priority list: Messages from the president of the United States

  3. Siren (alarm) - Wikipedia

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

    In a pneumatic siren, the stator is the part which cuts off and reopens air as rotating blades of a chopper move past the port holes of the stator, generating sound. The pitch of the siren's sound is a function of the speed of the rotor and the number of holes in the stator. A siren with only one row of ports is called a single tone siren.

  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. The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  6. M3U - Wikipedia

    en.wikipedia.org/wiki/M3U

    There is no formal specification for the M3U format; it is a de facto standard.. An M3U file is a plain text file that specifies the locations of one or more media files. The file is saved with the "m3u" filename extension if the text is encoded in the local system's default non-Unicode encoding (e.g., a Windows codepage), or with the "m3u8" extension if the text is UTF-8 encoded.

  7. How to watch the 2024 Macy’s Thanksgiving Day Parade - AOL

    www.aol.com/watch-2024-macy-thanksgiving-day...

    The best way to kick off your Turkey Day arrives in just a day for its 98th edition. The Macy’s Thanksgiving Day Parade returns on Nov. 28 and will once again feature iconic balloons, memorable ...

  8. Federal Signal Modulator - Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Modulator

    A Federal Signal Modulator siren in Bay Head, New Jersey.. Federal Signal Modulators (also known as Modulator Speaker Arrays) are electronic warning devices produced by Federal Signal Corporation that are used to alert the public about tornadoes, severe weather, earthquakes, fires, lahars, tsunamis, or any other disaster.

  9. Communities facing air pollution threats worry about EPA ...

    www.aol.com/news/communities-facing-air...

    In the U.S., the biggest polluters are often concentrated in underserved, mostly minority communities.