In the eye of the beholder.
Schwab
I R
IR
University of California, Davis, Department of Ophthalmology, Sacramento 95817, USA. irschwab@ucdavis.edu
D003118:Color Perception; D049670:History, 17th Century; D049672:History, 19th Century; D049690:History, Ancient; D006801:Humans; D055095:Optics and Photonics / Q000266:history*; D011891:Rain; D012542:Scattering, Radiation; D013472:Sunlight