The areas of road that are not the actual runway are taxiways. These lights are blue. Green lights are at the beginning of the runway itself, or approach end. The departure end is marked by red lights. Lights along the edges of the runway are white, changing to amber near the departure end of the runway. Recessed lights are located on the runway's center line at most large airports. For most pilots, it is initially a bit unnerving to land on these. They are, however, safely situated under protective covers. Sequenced flashing strobe lights line the approach threshold. Pilots can ask the air traffic controllers to change the intensity of the lights from the tower. The highest intensity is used to help incoming pilots locate the runway in times of reduced visibility. These lights are usually set to a low intensity at night so they won't interfere with the pilot's night vision.
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When you mix colored lights you add colors until you get white.
No
Taxiway lights are blue so as to separate them from the red and green threshold markers at the ends of the runways and the white lights on either side of the runways. Of course, the lights are activated under low-light, poor weather, and night conditions but not during clear bright days. Also, as a tidbit, at uncontrolled airports that have lights, they are typically set on a timer and are controlled by the pilot from the air. This is accomplished by tuning the radio to the frequency for the airport and clicking the microphone. One click sets the lights to low intensity, two sets medium intensity, and three sets full intensity. Most pilots recommend three clicks since when you are coming in for a landing, you want to be able to see easily, not play guessing games.
James C. Bremer has written: 'Study of optical techniques for indirect generation of runway approach lights' -- subject(s): Airports, Landing aids (Aeronautics), Lighting, Runways, Runways (Aeronautics)
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Neon
Composite light
compounds are responsible for the production of the colored light?
no
gels
Blue is Jewish