ADA is a huge helium-filled ball trapped inside a room. Its surface is spiked with charcoals that leave marks on the white surface of the walls, ceilings and floors as it bounced from one side of the room to the other.
Visitors might want to put the ball in action by pushing it into one direction or the other but after that, the way the ball sketches on the white surface is mostly autonomous, no matter how hard you strive at controlling its movements.
[Via We Make Money Not Art]
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