ADA – a kinetic sculpture by smigla-bobinski

ADA is an interactive kinetic sculpture by Karina Smigla-Bobinski. This is just kind of fun. Via wmmna:

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.