Luz color y más

http://micro.magnet.fsu.edu/optics/lightandcolor/index.html
http://micro.magnet.fsu.edu/primer/java/scienceopticsu/exciteemit/index.html
http://micro.magnet.fsu.edu/primer/java/scienceopticsu/exciteemit/index.html
http://www.asifunciona.com/fisica/af_luz/af_luz_1.htm