On Friday 24 August 2001 13:32, Tom Berger wrote: > And _which_ studies are _they_ referring to? ;-) You've just set the > problem one step back. > > tom OK, I have a background from astronomy, and from there it is known that the peak sensitivity for the human eye, under daylight conditions, is roughly a Gauss curve centered in the yellow part of the spectrum. This is the spectral definition for visual magnitudes in astronomy. If you add to this a high contrast, say black, then you arrive at a light yellow background with a black forground. I added the search way to my source, and I have read some of the 'pages' along that way - and they contain pages of research material. regards guran
