In the beginning there was nothing. God said, 'Let there be light!' And there was light. There was still nothing, but you could see it a whole lot better.
Ellen DeGeneres, (attributed)
More like this
Raleigh Leaders Plan Test of LED Lighting:
Rhett Allain has a list of 5 Things Every Human Should Know About Light, to tie in with the International Year of Light, and it's a good list with lots of .gifs.
Symposium Light, Performance and Quality of Life is on Thursday, 8 November 2007 in Eindhoven, the Netherlands:
Introduction
In the darkness of the deep ocean, some animals create their own light.