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  2. Carbon paper - Wikipedia

    en.wikipedia.org/wiki/Carbon_paper

    Ralph Wedgwood obtained the first patent for carbon paper in 1806. [2] Carbon paper in its original form was paper coated on one side with a layer of a loosely bound dry ink or pigmented coating, bound with wax. The manufacture of carbon paper was formerly the largest consumer of montan wax. In 1954 the Columbia Ribbon & Carbon Manufacturing ...

  3. Blueprint - Wikipedia

    en.wikipedia.org/wiki/Blueprint

    The tracing paper drawing is placed on top of the sensitized paper, and both are clamped under glass, in a daylight exposure frame, which is similar to a picture frame. The frame is put out into daylight, requiring a minute or two under a bright sun, or about ten minutes under an overcast sky to complete the exposure.

  4. Kars4Kids - Wikipedia

    en.wikipedia.org/wiki/Kars4Kids

    Kars4Kids is a Jewish [4] nonprofit car donation organization based in Lakewood, New Jersey in the United States. Kars4Kids is a 501(c)(3) nonprofit organization that states that its mission is "to fund educational, developmental, and recreational programs for low-income youth" [5] through programs largely facilitated by its sister charity Oorah, which focuses on Jewish children and families. [6]

  5. Image tracing - Wikipedia

    en.wikipedia.org/wiki/Image_tracing

    Reducing the number of colors in an image is often aided by a histogram. The most common colors may be selected as the representatives, and other colors are mapped to their closest representative. When the number of colors is set to two, the user may be asked to make threshold and contrast settings. [8]

  6. Bounding volume hierarchy - Wikipedia

    en.wikipedia.org/wiki/Bounding_volume_hierarchy

    There are three primary categories of tree construction methods: top-down, bottom-up, and insertion methods. Top-down methods proceed by partitioning the input set into two (or more) subsets, bounding them in the chosen bounding volume, then keep partitioning (and bounding) recursively until each subset consists of only a single primitive (leaf nodes are reached).

  7. Social Security number - Wikipedia

    en.wikipedia.org/wiki/Social_Security_number

    Although the original purpose for the number was for the Social Security Administration to track individuals, [1] the Social Security number has become a de facto national identification number for taxation and other purposes. [2] A Social Security number may be obtained by applying on Form SS-5, Application for a Social Security Number Card. [3]

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