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  2. Invisible ink - Wikipedia

    en.wikipedia.org/wiki/Invisible_ink

    Invisible ink is not effective with glossy or very smooth paper types, since the sizing of these papers prevents ink from being absorbed deep into the paper and it is easily visible, especially if the paper is examined under glancing light. There are, however, commercially available inks for non-porous surfaces that are only visible under ...

  3. Aburidashi - Wikipedia

    en.wikipedia.org/wiki/Aburidashi

    Aburidashi is a ninja technique of sending secret messages using a form of invisible ink. [1] The technique uses ink made of juice extracted from soaked and crushed soybeans . [ 1 ] The message becomes visible to the recipient by heating the paper.

  4. UV marker - Wikipedia

    en.wikipedia.org/wiki/UV_Marker

    UV marker with UV led lamp. An ultraviolet (UV) marker is a pen whose marks are fluorescent but transparent; the marks can be seen only under an ultraviolet light.They are commonly used in security situations to identify belongings or to prevent the reproduction of unauthorized banknotes.

  5. Minecraft modding - Wikipedia

    en.wikipedia.org/wiki/Minecraft_modding

    A Minecraft mod is a mod that changes aspects of the sandbox game Minecraft. Minecraft mods can add additional content to the game, make tweaks to specific features, and optimize performance. Thousands of mods for the game have been created, with some mods even generating an income for their authors.

  6. Scantegrity - Wikipedia

    en.wikipedia.org/wiki/Scantegrity

    Scantegrity II ballot and decoder pen. Left: Unmarked optical scan bubble. Right: Marked optical scan bubble revealing confirmation code "FY" The Scantegrity II voting procedure is similar to that of a traditional optical scan voting system, except that each voting response location contains a random confirmation code printed in invisible ink. [4]

  7. Pounce (powder) - Wikipedia

    en.wikipedia.org/wiki/Pounce_(powder)

    Pounce is gently sprinkled all over the writing on the paper. When using a quill or a steel nib, and with inks that are made up to match those typically in use during the 18th and 19th centuries, and provided the pen has been used with the fine strokes typical of handwriting of that period, the handwriting will be sufficiently dry within 10 seconds to allow the paper to be folded without blotting.

  8. Windows Ink - Wikipedia

    en.wikipedia.org/wiki/Windows_Ink

    Windows Ink is a software suite in Windows 10 that contains applications and features oriented towards pen computing, [1] and was introduced in Windows 10 Anniversary Update. The suite includes Sticky Notes, Sketchpad, and Screen sketch applications.

  9. Void pantograph - Wikipedia

    en.wikipedia.org/wiki/Void_pantograph

    This makes it possible to see a pattern that had been invisible. [ 1 ] [ 2 ] Numerous variations exist, including printing the marks using a raster of lines in one direction on a background of lines in another direction, [ 3 ] or using fine line patterns that alias into a visible moire pattern when copied.