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  2. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Since these fractions are quantity-per-quantity measures, they are pure numbers with no associated units of measurement. Commonly used are parts-per-million ( ppm ...

  3. SlideShare - Wikipedia

    en.wikipedia.org/wiki/SlideShare

    SlideShare is an American hosting service, now owned by Scribd, for professional content including presentations, infographics, documents, and videos. Users can upload files privately or publicly in PowerPoint, Word, PDF, or OpenDocument format. Content can then be viewed on the site itself, on mobile devices or embedded on other sites.

  4. Blog - Wikipedia

    en.wikipedia.org/wiki/Blog

    v. t. e. A blog (a truncation of " weblog ") [ 1] is an informational website consisting of discrete, often informal diary-style text entries (posts). Posts are typically displayed in reverse chronological order so that the most recent post appears first, at the top of the web page. In the 2000s, blogs were often the work of a single individual ...

  5. PTT Bulletin Board System - Wikipedia

    en.wikipedia.org/wiki/PTT_Bulletin_Board_System

    PTT Bulletin Board System ( PTT, Chinese: 批踢踢實業坊; pinyin: Pītītī Shíyè Fāng; Pe̍h-ōe-jī: Phi-thek-thek Si̍t-gia̍p-hong, telnet://ptt.cc) is the largest terminal-based bulletin board system (BBS) based in Taiwan. [1] It was founded by Yi-Chin Tu and other students from the National Taiwan University in 1995 as Professional ...

  6. History of blogging - Wikipedia

    en.wikipedia.org/wiki/History_of_blogging

    History of blogging. While the term "blog" was not coined until the late 1990s, the history of blogging starts with several digital precursors to it. Before "blogging" became popular, digital communities took many forms, including Usenet, commercial online services such as GEnie, BiX and the early CompuServe, e-mail lists [ 1][ 2] and Bulletin ...

  7. Presentation - Wikipedia

    en.wikipedia.org/wiki/Presentation

    A speaker giving a presentation using a projector. A presentation conveys information from a speaker to an audience. Presentations are typically demonstrations, introduction, lecture, or speech meant to inform, persuade, inspire, motivate, build goodwill, or present a new idea/product. [1] Presentations usually require preparation, organization ...

  8. WordPress - Wikipedia

    en.wikipedia.org/wiki/WordPress

    WordPress (also known as WP or WordPress.org) is a web content management system.It was originally created as a tool to publish blogs but has evolved to support publishing other web content, including more traditional websites, mailing lists and Internet forum, media galleries, membership sites, learning management systems, and online stores.

  9. CSS - Wikipedia

    en.wikipedia.org/wiki/CSS

    To demonstrate specificity Inheritance Inheritance is a key feature in CSS; it relies on the ancestor-descendant relationship to operate. Inheritance is the mechanism by which properties are applied not only to a specified element but also to its descendants. Inheritance relies on the document tree, which is the hierarchy of XHTML elements in a page based on nesting. Descendant elements may ...