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  2. Physiognotrace - Wikipedia

    en.wikipedia.org/wiki/Physiognotrace

    A pantograph connected to a pencil produced within a few minutes a "grand trait", a contour line on a piece of paper. With the help of a second scaling-down pantograph, the basic features of the portrait were transferred from the sheet in the form of dotted lines to a copper plate, which had previously been prepared with a ground for etching.

  3. Pantograph - Wikipedia

    en.wikipedia.org/wiki/Pantograph

    Drafting pantograph in use Pantograph used for scaling a picture. The red shape is traced and enlarged. Pantograph 3d rendering. A pantograph (from Greek παντ- 'all, every' and γραφ- 'to write', from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical ...

  4. Pantograph (transport) - Wikipedia

    en.wikipedia.org/wiki/Pantograph_(transport)

    The diamond-shaped, electric-rod pantograph of the Swiss cogwheel locomotive of the Schynige Platte railway in Schynige Platte, built in 1911 Cross-arm pantograph of a Toshiba EMU. A pantograph (or "pan" or "panto") is an apparatus mounted on the roof of an electric train, tram or trolley buses [1] to collect power through contact with an ...

  5. Void pantograph - Wikipedia

    en.wikipedia.org/wiki/Void_pantograph

    In security printing, void pantograph refers to a method of making copy-evident and tamper-resistant patterns in the background of a document. Normally these are invisible to the eye, but become obvious when the document is photocopied.

  6. Colored gold - Wikipedia

    en.wikipedia.org/wiki/Colored_gold

    Blue gold is an alloy of gold and either gallium or indium. [15] Gold-indium contains 46% gold (about 11 karat) and 54% indium, [ 4 ] forming an intermetallic compound AuIn 2 . While several sources remark this intermetallic to have "a clear blue color", [ 3 ] in fact the effect is slight: AuIn 2 has CIE LAB color coordinates of 79, −3.7, − ...

  7. Is this dress black and blue or white and gold? Internet set ...

    www.aol.com/article/2015/02/26/is-this-dress...

    Coke or Pepsi. Chevy or Ford. Mac or PC. The classic debates were suddenly eclipsed Thursday when the Internet exploded with deliberation over the colors of a dress posted to Tumblr. Some saw a ...

  8. Pantograph (lighting suspension) - Wikipedia

    en.wikipedia.org/wiki/Pantograph_(lighting...

    A pantograph is a commonly used overhead suspension system for lamps and audio and video monitors in television studios. It is also used on a smaller scale in many photography studios. Using either motor driven cables or a spring system, the pantograph can be balanced so that a light touch can readjust the height of the load (usually a lamp).

  9. Today’s NYT ‘Strands’ Hints, Spangram and Answers for Monday ...

    www.aol.com/today-nyt-strands-hints-spangram...

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