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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...

  3. Radiation portal monitor - Wikipedia

    en.wikipedia.org/wiki/Radiation_Portal_Monitor

    Radiation Portal Monitors ( RPM s) are passive radiation detection devices used for the screening of individuals, vehicles, cargo or other vectors for detection of illicit sources such as at borders or secure facilities. Fear of terrorist attacks with radiological weapons spurred RPM deployment for cargo scanning since 9/11, particularly in the ...

  4. Button copy - Wikipedia

    en.wikipedia.org/wiki/Button_copy

    Button copy is a type of physical design for road signs in the United States. Round plastic retroreflective buttons made of transparent plastic are placed in rows following the contours of sign legend elements, usually painted white, such as letters, numbers, arrows, and borders. In daylight, the buttons visually blend with the white sign ...

  5. Box-drawing characters - Wikipedia

    en.wikipedia.org/wiki/Box-drawing_characters

    Midnight Commander using box-drawing characters in a terminal emulator. Box-drawing characters, also known as line-drawing characters, are a form of semigraphics widely used in text user interfaces to draw various geometric frames and boxes. These characters are characterized by being designed to be connected horizontally and/or vertically with ...

  6. 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 ...

  7. ‘Car insurance is a scam’: Frustrated driver ... - AOL

    www.aol.com/finance/car-insurance-scam...

    ‘Car insurance is a scam’: Frustrated driver slammed GEICO for 56% rate hike after she failed to read the ‘fine print’ — here's how to find your next policy

  8. What Happens to Roof Panels When Solar Companies Shut Down

    www.aol.com/happens-roof-panels-solar-companies...

    When customers sign a solar lease or power purchase agreement (PPA), the solar company agrees to cover the cost of the panel removal when the lease is up, usually after 20 years. But big companies ...

  9. Writing system - Wikipedia

    en.wikipedia.org/wiki/Writing_system

    A writing system comprises a particular set of symbols, called a script, as well as the rules by which the script represents a particular language.Writing systems can generally be classified according to how symbols function according to these rules, with the most common types being alphabets, syllabaries, and logographies.