Night Flights

Question 1

How long does it take for our eyes to fully adjust to darkness?

Answer 1

30 min.

Question 2

How long does it take for our night vision to switch from our cones to our rods?

Answer 2

7 min.

Question 3

What are the 4 night illusions?

Answer 3

1. Auto kinesis-Staring at a light with black background, light will appear to move.
2. False horizon-light out in distance create an illusion of a horizon. Lights on hill can mislead a pilot to adjust and start turning.
3. Reversible perspective-aircraft looks like it is leaving but it is actually approaching.
4. Flicker vertigo-flickeing lights can create an idea of imbalance, disorientation, or dizziness.