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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...

  3. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Noise-cancelling headphones are headphones that suppress unwanted ambient sounds using active noise control (ANC). Active noise cancellation makes it possible to listen to audio content without raising the volume excessively. In an aviation environment, noise-cancelling headphones increase the signal-to-noise ratio significantly more than ...

  4. Headphones - Wikipedia

    en.wikipedia.org/wiki/Headphones

    Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby ...

  5. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. Teens discuss how social media reshapes childhood in FX ...

    www.aol.com/teens-discuss-social-media-reshapes...

    The series comes at a time of growing awareness about the harms of social media. In June, U.S. Surgeon General Dr. Vivek H. Murthy, called for a "warning label" on social media in a New York Times ...

  7. Book of Mormon - Wikipedia

    en.wikipedia.org/wiki/Book_of_Mormon

    The Book of Mormon is a religious text of the Latter Day Saint movement, first published in 1830 by Joseph Smith as The Book of Mormon: An Account Written by the Hand of Mormon upon Plates Taken from the Plates of Nephi.

  8. YouTube - Wikipedia

    en.wikipedia.org/wiki/YouTube

    YouTube is an American online video sharing platform owned by Google.Accessible worldwide, [note 1] YouTube was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim, three former employees of PayPal.

  9. Awareness - Wikipedia

    en.wikipedia.org/wiki/Awareness

    Awareness is a relative concept.It may refer to an internal state, such as a visceral feeling, or on external events by way of sensory perception. [2] It is analogous to sensing something, a process distinguished from observing and perceiving (which involves a basic process of acquainting with the items we perceive). [4]