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2. Lichtenberg figure - Wikipedia

   en.wikipedia.org/wiki/Lichtenberg_figure

   Modern 3D Lichtenberg figures or "electrical treeing" in a block of clear acrylic, created by irradiating the block with an electron beam. Actual size: 80 mm × 80 mm × 50 mm (3 in × 3 in × 2 in) Lichtenberg figures are generated by a sliding spark discharge on the flask with a mixture of gases. Structural differences between the "positive ...

3. Computer case - Wikipedia

   en.wikipedia.org/wiki/Computer_case

   Since the early 2000s, some cases have included clear side panels or acrylic windows so that users can look inside while it is operating. Modded cases may also include colored internal lighting, custom paint, or liquid cooling systems. Some hobbyists build custom cases from raw materials like aluminum, steel, styrofoam, acrylic, or wood.

4. Architectural glass - Wikipedia

   en.wikipedia.org/wiki/Architectural_glass

   A building in Canterbury, England, which displays its long history in different building styles and glazing of every century from the 16th to the 20th included. Architectural glass is glass that is used as a building material. It is most typically used as transparent glazing material in the building envelope, including windows in the external ...

5. Poly(methyl methacrylate) - Wikipedia

   en.wikipedia.org/wiki/Poly(methyl_methacrylate)

   The glass sample vial of the corrosive and poisonous liquid has been cast into an acrylic plastic cube Methyl methacrylate " synthetic resin " for casting (simply the bulk liquid chemical) may be used in conjunction with a polymerization catalyst such as methyl ethyl ketone peroxide (MEKP), to produce hardened transparent PMMA in any shape ...

6. Projection screen - Wikipedia

   en.wikipedia.org/wiki/Projection_screen

   Switchable projection screens can be switched between opaque and clear. In the opaque state, projected image on the screen can be viewed from both sides. It is very good for advertising on store windows. Inflatable movie screen. Mobile screens usually use either a pull-down screen on a free stand, or pull up from a weighted base.

7. List of commercial failures in computing - Wikipedia

   en.wikipedia.org/wiki/List_of_commercial...

   Notably, the computer could display up to 16 colors and play up to three musical voices simultaneously—two clear advantages over the IBM PC—along with two slots for ROM cartridges, two joystick ports, [50] and an unusual "user-friendly" design feature allowing for expansion modules called "sidecars" that could be daisy-chained, contributing ...