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  2. Bubblegram - Wikipedia

    en.wikipedia.org/wiki/Bubblegram

    A laser glass sculpture of a caffeine molecule. A bubblegram (also known as laser crystal, Subsurface Laser Engraving, 3D crystal engraving or vitrography) is a solid block of glass or transparent plastic that has been exposed to laser beams to generate three-dimensional designs inside.

  3. Laser engraving - Wikipedia

    en.wikipedia.org/wiki/Laser_engraving

    Laser marking on stainless steel A laser engraving machine A laser engraver. A laser engraving machine consists of three main parts: a laser, a controller, and a surface. [2] The laser is a drawing tool: the beam emitted from it allows the controller to trace patterns onto the surface.

  4. Engraving - Wikipedia

    en.wikipedia.org/wiki/Engraving

    Other terms often used for printed engravings are copper engraving, copper-plate engraving or line engraving. Steel engraving is the same technique, on steel or steel-faced plates, and was mostly used for banknotes, illustrations for books, magazines and reproductive prints, letterheads and similar uses from about 1790 to the early 20th century, when the technique became less popular, except ...

  5. Pepita glass engraving - Wikipedia

    en.wikipedia.org/wiki/Pepita_glass_engraving

    Pepita glass engraving (Spanish: grabado de pepita en vidrio) [1] is a technique of engraving on glass used by artisans of Mexico, in which an aluminum oxide grinding stone or wheel is used in a grinding machine to manually carve out patterns of small, decorative pepita-like shapes in glass objects. [1] Machine-made, molded glass products are ...

  6. 5D optical data storage - Wikipedia

    en.wikipedia.org/wiki/5D_optical_data_storage

    5D optical data storage (also branded as Superman memory crystal, [1] a reference to the Kryptonian memory crystals from the Superman franchise) is an experimental nanostructured glass for permanently recording digital data using a femtosecond laser writing process. [2]

  7. 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 ...

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