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  2. Aviation light signals - Wikipedia

    en.wikipedia.org/wiki/Aviation_light_signals

    Air traffic control signal light gun in use at base flight tower. In the case of a radio failure or aircraft not equipped with a radio, or in the case of a deaf pilot, air traffic control may use a signal lamp (called a "signal light gun" or "light gun" by the FAA [1] [2]) to direct the aircraft.

  3. Navigation light - Wikipedia

    en.wikipedia.org/wiki/Navigation_light

    Watercraft navigation lights must permit other vessels to determine the type and relative angle of a vessel, and thus decide if there is a danger of collision. In general, sailing vessels are required to carry a green light that shines from dead ahead to 2 points (22 + 1 ⁄ 2 °) abaft [note 1] the beam on the starboard side (the right side from the perspective of someone on board facing ...

  4. Aviation obstruction lighting - Wikipedia

    en.wikipedia.org/wiki/Aviation_obstruction_lighting

    Aircraft warning lights at the Mannheim telecommunications tower, in the background the bright torchlight of a steam cracker, in the distance warning lights from wind turbines Structure using a white strobe Structure using a Red/White Strobe Closeup of an aircraft warning light on top of a highrise in Changzhou, China Structure using high-intensity white lights and a medium-intensity white strobe

  5. What do the orange, green dots on my iPhone mean? - AOL

    www.aol.com/news/orange-green-dots-iphone-mean...

    Story at a glance (NEXSTAR) – If you’ve used Snapchat or your camera app recently, you may have noticed a green dot appear at the top of your iPhone. Or maybe it was an orange dot when you ...

  6. Visual approach slope indicator - Wikipedia

    en.wikipedia.org/wiki/Visual_approach_slope...

    Each light is designed so that it appears as either white or red, depending on the angle at which it is viewed. When the pilot is approaching the lights at the proper angle, meaning the pilot is on the glide slope, the first set of lights appears white and the second set appears red. When both sets appear white, the aircraft is too high, and ...

  7. Lasers and aviation safety - Wikipedia

    en.wikipedia.org/wiki/Lasers_and_aviation_safety

    The flashes shown greatly exaggerate the duration of a laser flash and use green rather than less visible red light. With a plane traveling hundreds of miles per hour and a laser beam size of only a meter or so, flash durations would be measured in thousandths of a second. [6]

  8. Um, Why Are My Texts Green on My iPhone? - AOL

    www.aol.com/lifestyle/um-why-texts-green-iphone...

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  9. List of airline liveries and logos - Wikipedia

    en.wikipedia.org/wiki/List_of_airline_liveries...

    Scandinavian Airlines: The logotype of the abbreviation of the airline's full name on top of the light beige fuselage and blue tail section, with "Scandinavian" on the engines and the underbelly of the plane. South African Airways: South African flag colors plus sun, adopted in 1997 (replacing the springbok antelope).