Lights for Life…
Gjon Mili, a lighting innovator and Pablo Picasso collaborated to produce images of Picasso drawing with lights For Life Magazine in 1949. The light drawings were done with a small electrical light in a darkened room; in effect, the images vanished as soon as they were created.
Read more: http://life.time.com/culture/picasso-draws-with-light-1949/#ixzz2FLsXErBM