Light (and what we do with it)

Abelardo Morell uses a camera obscura, a large format pinhole camera. He darkens a whole room which he then paints with light from one small hole in the window. The outside scene is projected on the room and he then photographs it.

http://www.abelardomorell.net/

Projections and light work are becoming huge in the art world. I don't know if it's because the technology has gotten better, or if it's just the cheapest way to make really big impactful art, but I'm loving what artists are starting to do with projection and light.