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2. Black Widow (paint mix) - Wikipedia

   en.wikipedia.org/wiki/Black_Widow_(paint_mix)

   Black Widow (also known as a Black Widow Ultra in Europe) is a non-commercial open source project to design a paint mix for the base of a DIY projection screen.Anonymous DIYers responsible for popularizing Black Widow in the DIY community include Mechman Alternators (US), Wbassett (US) and Custard10 (EU). [1]

3. Laser-powered phosphor display - Wikipedia

   en.wikipedia.org/wiki/Laser-powered_phosphor_display

   Also, the collisions of the laser photons with the phosphor screen do not produce x-rays as a side effect, whereas electrons colliding with a screen in a vacuum do produce x-rays, requiring radiation shielding in a CRT (said shielding taking the form of leaded glass in most CRTs produced since the early 1980s) but not in a LPD.

4. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   LEDs are also used as a light source for DLP projectors, and to backlight newer LCD television (referred to as LED TV), computer monitor (including laptop) and handheld device LCDs, succeeding older CCFL-backlit LCDs although being superseded by OLED screens. RGB LEDs raise the color gamut by as much as 45%.

5. Digital light processing - Wikipedia

   en.wikipedia.org/wiki/Digital_Light_Processing

   DLP technology is used in DLP front projectors (standalone projection units for classrooms and business primarily), DLP rear projection television sets, and digital signs. It was also used in about 85% of digital cinema projection as of around 2011, and in additive manufacturing as a light source in some printers to cure resins into solid 3D ...

6. Projector - Wikipedia

   en.wikipedia.org/wiki/Projector

   A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens, but some newer types of projectors can project the image directly, by using lasers. A virtual retinal display, or retinal ...

7. What’s the history of the Panama Canal, and why is Trump ...

   www.aol.com/news/history-panama-canal-why-trump...

   The territory was at the time controlled by the Republic of Colombia, but a US-supported revolt led to the separation of Panama and Colombia and the formation of the Republic of Panama in 1903.