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  2. W3C Markup Validation Service - Wikipedia

    en.wikipedia.org/wiki/W3C_Markup_Validation_Service

    W3C Markup Validation Service. Tag certifying that a website has been checked for well-formed XHTML (above) and CSS (below) markup. The Markup Validation Service is a validator by the World Wide Web Consortium (W3C) that allows Internet users to check pre-HTML5 HTML and XHTML documents for well-formed markup against a document type definition.

  3. Positioning, Navigation, and Timing Integrated Mission Delta ...

    en.wikipedia.org/wiki/Positioning,_Navigation...

    Col Andrew S. Menschner [1] Senior Enlisted Leader. SMSgt Joshua I. Griffin [2] Positioning, Navigation, and Timing Integrated Mission Delta (Provisional) ( PNT IMD (P)) is a United States Space Force unit responsible for positioning, navigation, and timing operations, acquisitions, and sustainment. It was activated on 13 October 2023.

  4. Force protection condition - Wikipedia

    en.wikipedia.org/wiki/Force_Protection_Condition

    A U.S. military base entrance displaying the present THREATCON condition on September 11, 2001. In the United States, military security parlance, force protection condition (FPCON for short) is a counter-terrorist threat system overseen by the United States Department of Defense directive and describes the number of measures needed to be taken by security agencies in response to various levels ...

  5. Multi-divisional form - Wikipedia

    en.wikipedia.org/wiki/Multi-divisional_form

    The M-form, or multi-divisional form, originated in the early 20th century, and was most quickly adopted and taken advantage of in the US. While it was first utilized in specific industries like the petroleum and some technology companies in the 1950s, by the 1960s many large American companies had already implemented the M-form.

  6. Delta Air Lines Flight 1141 - Wikipedia

    en.wikipedia.org/wiki/Delta_Air_Lines_Flight_1141

    Injuries. 76 (26 serious) Survivors. 94. Delta Air Lines Flight 1141 was a scheduled domestic passenger flight between Dallas/Fort Worth, Texas and Salt Lake City, Utah. On August 31, 1988, the flight, using a Boeing 727-200 series aircraft, crashed during takeoff, resulting in 14 deaths and 76 injuries of the 108 on board.

  7. Delta Cephei - Wikipedia

    en.wikipedia.org/wiki/Delta_Cephei

    Delta Cephei (δ Cep, δ Cephei) is a quadruple star system located approximately 887 light-years away in the northern constellation of Cepheus, the King. At this distance, the visual magnitude of the star is diminished by 0.23 as a result of extinction caused by gas and dust along the line of sight. [5]

  8. World Wide Web - Wikipedia

    en.wikipedia.org/wiki/World_Wide_Web

    A web page from Wikipedia displayed in Google Chrome. The World Wide Web (WWW or simply the Web) is an information system that enables content sharing over the Internet through user-friendly ways meant to appeal to users beyond IT specialists and hobbyists.

  9. Virtual private network - Wikipedia

    en.wikipedia.org/wiki/Virtual_private_network

    Extranet-based site-to-site In the context of site-to-site configurations, the terms intranet and extranet are used to describe two different use cases. [6] An intranet site-to-site VPN describes a configuration where the sites connected by the VPN belong to the same organization, whereas an extranet site-to-site VPN joins sites belonging to ...