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2. 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

3. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   Switch on time: LEDs light up extremely quickly. A typical red indicator LED achieves full brightness in under a microsecond. [69] LEDs used in communications devices can have even faster response times. Focus: The solid package of the LED can be designed to focus its light. Incandescent and fluorescent sources often require an external ...

4. Aviation light signals - Wikipedia

   en.wikipedia.org/wiki/Aviation_light_signals

   A United States Air Force airman with a signal light gun that can be used to control aircraft with radio failure. 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 ...

5. Surface-mount technology - Wikipedia

   en.wikipedia.org/wiki/Surface-mount_technology

   Surface-mount technology (SMT), originally called planar mounting, [1] is a method in which the electrical components are mounted directly onto the surface of a printed circuit board (PCB). [2] An electrical component mounted in this manner is referred to as a surface-mount device ( SMD ).

6. Aircraft flight control system - Wikipedia

   en.wikipedia.org/wiki/Aircraft_flight_control_system

   Cockpit controls and instrument panel of a Cessna 182D Skylane. Generally, the primary cockpit flight controls are arranged as follows: [2] A control yoke (also known as a control column), centre stick or side-stick (the latter two also colloquially known as a control or joystick), governs the aircraft's roll and pitch by moving the ailerons (or activating wing warping on some very early ...

7. Drones continue to buzz over US bases. The military isn’t ...

   www.aol.com/drones-continue-buzz-over-us...

   Officials have stressed that they don’t believe the drones spotted in New Jersey and other states pose a national security or public safety risk, attributing many of the sightings to explainable ...

8. Rescue Piglet Giving Kisses Out of Pure Gratitude Is the ...

   www.aol.com/rescue-piglet-giving-kisses-pure...

   Follow us on YouTube for more entertaining videos. Or, share your own adorable pet by submitting a video, and sign up for our newsletter for the latest pet updates and tips. Show comments.

9. 5 cancer types where screenings save the most lives - AOL

   www.aol.com/5-cancer-types-where-screenings...

   Over a 45-years span — between 1975 and 2020 — improvements in cancer screenings and prevention strategies have reduced deaths from five common cancers more than any advances in treatments ...