This light-tree exhibit is being projected onto buildings. The projecter has senors linked to it that allows wind to be sensed. They are connected to computers to make the tree move how it does. This light-tree works as a real tree would work. If the wind is blowin, it will move corresponding with the velocity of the wind. When the wind is blowing hard, the tree bends and loses trees as a real tree would. When people walk across this light tree, one of its leaves fall to the ground.