The remarkable nature of color vision leads to some interesting and puzzling phenomena.
- The petals of a red rose are much brighter than its leaves by day, but the leaves are brighter at twilight!
- After your eyes have adapted, you might see objects at night. But they appear to have no color.
- You notice a dim star in your peripheral vision, but when you look directly at it, it disappears!
- After a long time of dark adaptation, you can see large objects, but not fine detail.
- If you are examining a detailed object with reds, greens and intense blue details, the blue will be less distinct.
- Ship captains and airline pilots can see outside better at night if their instrument panels are red.
- White light and a spectral color produce a color. But that perceived color can be made in many different ways.
- Two light sources appear equally white. Yet a colored object may be distinctly different in color in their light.
- Why is a candle flame yellow?
- Why is the sky blue?
- Why is the sunset red?