But which blue is the sky?
Did my photo even capture the right color?
What is "sky blue"? I've taken painting classes and am not sure I've ever achieved sky blue. I remember that Dr. Raabe was looking for a sky-blue flower. I wonder if he ever found it. And measuring its wavelength seems like cheating.
- Why the Sky is Blue: Discovering the Color of Life
- Horace Bénédict do Saussure's cyanometer.
- Prussian blue, the first modern synthetic pigment is what Humboldt used.
- Cyan (too green), was originally the cornflower
- Cornflower blue has little green
- Sky blue
- Some nice blue flowers: tweedia
- True blue flowers
|From Royal Society of Chemistry|