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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    When a racon receives a radar pulse, it responds with a signal on the same frequency which puts an image on the radar display. This takes the form of a short line of dots and dashes forming a Morse character radiating away from the location of the beacon on the normal plan position indicator radar display. The length of the line usually ...

  3. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/wiki/1951_USAF_resolution_test...

    A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...

  4. Screen printing - Wikipedia

    en.wikipedia.org/wiki/Screen_printing

    Screen printing is a printing technique where a mesh is used to transfer ink (or dye) onto a substrate, except in areas made impermeable to the ink by a blocking stencil.A blade or squeegee is moved across the screen to fill the open mesh apertures with ink, and a reverse stroke then causes the screen to touch the substrate momentarily along a line of contact.

  5. Ray J - Wikipedia

    en.wikipedia.org/wiki/Ray_J

    Ray J. William Ray Norwood Jr. (born January 17, 1981), [1] known professionally as Ray J, is an American R&B singer, songwriter, television personality, and actor. Born in McComb, Mississippi, and raised in Carson, California, he is the younger brother of singer and actress Brandy Norwood. [3] In 2005, Ray J scored the Top 20 Billboard Hot 100 ...

  6. Photographic printing - Wikipedia

    en.wikipedia.org/wiki/Photographic_printing

    Photographic printing is the process of producing a final image on paper for viewing, using chemically sensitized paper. The paper is exposed to a photographic negative , a positive transparency (or slide ) , or a digital image file projected using an enlarger or digital exposure unit such as a LightJet or Minilab printer.

  7. Product placement - Wikipedia

    en.wikipedia.org/wiki/Product_placement

    Product placement was a common feature of many of the earliest actualities and cinematic attractions from the first ten years of cinema history. During the next four decades, motion picture trade journal Harrison's Reports frequently cited cases of on-screen brand-name placement.

  8. How do I take a screenshot? - AOL Help

    help.aol.com/articles/how-do-i-take-a-screenshot

    If you're asked to provide a screenshot when contacting AOL about an issue, you can use these steps for the most common operating systems. If you're using a different device, contact the manufacturer of the device for specific steps. • Capture a screenshot on iOS. • Capture a screenshot on Windows. • Capture a screenshot on Mac OS X ...

  9. Did ‘Bluey’ introduce its first gay couple? The history of ...

    www.aol.com/news/did-bluey-introduce-first-gay...

    The series ran from 1983 to 1986, but it wasn't until years after it ended that creator Mike Young revealed Skeleton's true identity. In 2014, Young told Radio Times that his show had "a gun ...