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  2. Door (bulletin board system) - Wikipedia

    en.wikipedia.org/wiki/Door_(bulletin_board_system)

    Sometimes called external programs, doors are the most common way to add games, utilities, and other extensions to BBSes. [2] Because BBSes typically depended on the telephone system, BBSes and door programs tended to be local in nature, unlike modern Internet games and applications.

  3. Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.

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

  5. Mantrap (access control) - Wikipedia

    en.wikipedia.org/wiki/Mantrap_(access_control)

    Entrance to HM Prison Edinburgh. A mantrap, security mantrap portal, airlock, sally port or access control vestibule is a physical security access control system comprising a small space with two sets of interlocking doors, such that the first set of doors must close before the second set opens.

  6. Wikipedia:Vital articles/List of all articles - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Vital_articles/...

    · The Nutcracker · The Odd Couple (play) · The Office (American TV series) · The Old Man and the Sea · The Onion · The Open Championship · The Open Society and Its Enemies · The Oprah Winfrey Show · The Oregon Trail (1971 video game) · The Origins of Totalitarianism · The Passion of Joan of Arc · The Peacock Room · The Pearl Island ...

  7. Anchor - Wikipedia

    en.wikipedia.org/wiki/Anchor

    An anchor is a device, normally made of metal, used to secure a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current. The word derives from Latin ancora, which itself comes from the Greek ἄγκυρα (ankȳra). [2] [3] Anchors can either be temporary or permanent.

  8. Anchor bolt - Wikipedia

    en.wikipedia.org/wiki/Anchor_bolt

    Anchor bolts are used to connect structural and non-structural elements to concrete. [2] The connection can be made by a variety of different components: anchor bolts (also named fasteners), steel plates, or stiffeners. Anchor bolts transfer different types of load: tension forces and shear forces. [3]

  9. History of the anchor - Wikipedia

    en.wikipedia.org/wiki/History_of_the_Anchor

    Killicks are primitive anchors formed by lashing tree branches to a stone for weight. Greeks were using mushroom anchors by 400 B.C. fashioned from a flattened stone with a hole drilled through the center and a triangular eyebolt at the crown for "tripping" the anchor out of its bed. [2]