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  2. Purple Line (Maryland) - Wikipedia

    en.wikipedia.org/wiki/Purple_Line_(Maryland)

    The Purple Line is a 16.2-mile (26.1 km) light rail line [3] being built to link several Maryland suburbs of Washington, D.C.: Bethesda, Silver Spring, College Park, and New Carrollton. [7] Currently slated to open in late 2027, the line will also enable riders to move between the Maryland branches of the Red, Green, and Orange lines of the ...

  3. Emergency vehicle lighting - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_lighting

    Blue flashing lights are used by police, military police, customs, fire departments, rescue services, and ambulances. Government, VIP, and embassy vehicles may also use blue if accompanied by local police. Any vehicle equipped with a blue flashing light must have a permission issued by the DMV.

  4. Corona discharge - Wikipedia

    en.wikipedia.org/wiki/Corona_discharge

    Corona discharges represent a significant power loss for electric utilities. Corona discharge from a spoon attached to the high voltage terminal of a Tesla coil. A corona discharge is an electrical discharge caused by the ionization of a fluid such as air surrounding a conductor carrying a high voltage.

  5. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...

  6. Xbox 360 technical problems - Wikipedia

    en.wikipedia.org/wiki/Xbox_360_technical_problems

    The Xbox 360 video game console is subject to a number of technical problems and failures that can render it unusable. However, many of the issues can be identified by a series of glowing red lights flashing on the face of the console; the three flashing red lights nicknamed the " Red Ring of Death " or the " RRoD " [1][2] being the most infamous.

  7. Line of purples - Wikipedia

    en.wikipedia.org/wiki/Line_of_purples

    Line of purples. In color theory, the line of purples or purple boundary is the locus on the edge of the chromaticity diagram formed between extreme spectral red and violet. Except for these endpoints of the line, colors on the line are non-spectral (no monochromatic light source can generate them). Rather, every color on the line is a unique ...

  8. Combined Charging System - Wikipedia

    en.wikipedia.org/wiki/Combined_Charging_System

    The Combined Charging System (CCS) is a standard for charging electric vehicles. It can use Combo 1 (CCS1) or Combo 2 (CCS2) connectors to provide power at up to 350 kilowatts (kW) (max 500 A). [ 1 ] These two connectors are extensions of the IEC 62196 Type 1 and Type 2 connectors, with two additional direct current (DC) contacts to allow high ...

  9. Photosensitive epilepsy - Wikipedia

    en.wikipedia.org/wiki/Photosensitive_epilepsy

    Photosensitive epilepsy. Photosensitive epilepsy (PSE) is a form of epilepsy in which seizures are triggered by visual stimuli that form patterns in time or space, such as flashing lights, bold, regular patterns, or regular moving patterns. PSE affects approximately one in 4,000 people (5% of those with epilepsy). [1]