Cloud Chamber for the Trees and Sky

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Cloud Chamber for the Trees and Sky is an outdoor exhibit by Chris Drury located in the museum park of the North Carolina Museum Of Art.

The chamber itself is a round building built of stone, wood, and turf with a single door to admit the viewer. It is light-tight when its door is closed, except for one small, round opening in its roof which allows the building to act as a camera obscura. Images of the sun, clouds, and trees are projected onto the smooth white walls of the interior of the chamber.