On Ulfire and Jale

[athornton]

In the current Scientific American (Feb. 2010) there's an article on "Forbidden Colors" in which a reddish green and a yellowish blue are described, and an experimental setup to make them perceivable explained.

If that ain't ulfire and jale, I dunno what is.

Also a BoingBoing post about Arnold Bocklin should provide plenty of RPG inspiration.