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  2. Door breaching - Wikipedia

    en.wikipedia.org/wiki/Door_breaching

    A U.S. Marine performs a ballistic breach of a padlocked door using a combat shotgun. Door breaching is a process used by military, police, or emergency services to force open closed or locked doors. A wide range of methods are available depending on the door's opening direction (inward or outward), construction materials, etc., and one or more ...

  3. Door security - Wikipedia

    en.wikipedia.org/wiki/Door_security

    Door viewers — small fish-eye lenses that allow residents to view outside without opening the door. Door windows — there are three common methods to add security to windows in or beside doors: security bars and grates, security films (coatings applied to the glass in windows to reinforce it), or breakage resistant windows ( plexiglas ...

  4. Door closer - Wikipedia

    en.wikipedia.org/wiki/Door_closer

    A door closer is a mechanical device that regulates the speed and action of a door’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior. Door closers can be linked to a building's fire and security alarm systems. [2]

  5. Plug door - Wikipedia

    en.wikipedia.org/wiki/Plug_door

    On some aircraft, a complex hinge design allows half the door to open inward like a plug door, and the other half to open outward. Initially the door can be rotated to fit through the opening for the non-plug half so the whole door then opens outward; this is called a semi-plug door. Alternatively, the door may have locking hinged panels at the ...

  6. Deep Note - Wikipedia

    en.wikipedia.org/wiki/Deep_Note

    The sound is used on trailers for THX-certified movie theaters, home video releases, video games, and in-car entertainment systems. The Deep Note was partially previewed on the opening track of the 1983 album The Digital Domain: A Demonstration, where it was included among sound effects that were combined with the Deep Note itself.

  7. Indian Handcrafts - Wikipedia

    en.wikipedia.org/wiki/Indian_Handcrafts

    This included opening for Hollerado, Sum 41 and Billy Talent for the first leg of the tour. During the second leg, Sum 41 was switched out for the band Monster Truck. On May 24, 2013, Indian Handcrafts uploaded a music video for Bruce Lee, the first track from Civil Disobedience for Losers onto YouTube. [8]

  8. Black Dog (Led Zeppelin song) - Wikipedia

    en.wikipedia.org/wiki/Black_Dog_(Led_Zeppelin_song)

    The sounds are actually recordings of various guitar track openings played simultaneously, creating a "sonic collage" in which the tape can be heard spinning up to speed. Robert Plant then begins singing in a high strong voice, "hey, hey, mama" unaccompanied by music ( a cappella ).

  9. Grammy Museum at L.A. Live - Wikipedia

    en.wikipedia.org/wiki/Grammy_Museum_at_L.A._Live

    The Grammy Museum is an interactive, educational museum devoted to the history and winners of the Grammy Awards.The Museum has interactive touch-screens, videos, recording booths, and a collection of historical music artifacts including costumes and instruments from the Grammy Awards, hand-written lyrics, records, and audio/video recordings.