The video below shows Craig's Sun Boxes installation at the 2009 "Off the Grid" (Rhyolite NV) festival.
Somewhere between high tech and high art
Most interesting (and least apparent) is how knowledge of the Light Ripple's interaction model becomes a social currency. The only clue to the sculpture's operation is a small lighted push-button which is easy to overlook in the chaotic environment. Possessors of this knowledge exhibit how "in the know" they are and increase their perceived social value by sharing the secret with their peers, which perpetuates interaction with the sculpture throughout the night.