Polish artist Karina Smigla-Bobinski  gives buoyancy to the act of drawing with ADA, a large inflatable drawing tool. Filled with helium,

ADA floats freely, making lines with its charcoal spikes as it moves through a room. More dramatic mark-making starts to occur when humans are added to the mix: the video above shows visitors engaging with ADA at Muffathalle where it was installed for a week in Munich, Germany.

The artist describes ADA in a statement: “The globe put in action fabricates a composition of lines and points, which remain incalculable in their intensity, expression, and form however hard the visitor tries to control ADA, to drive her, to domesticate her. Whatever he tries out, he would notice very soon, that ADA is an independent performer, studding the originally white walls with drawings and signs.”

Source: A Gigantic Helium-Filled and Charcoal-Studded Sphere Covers Rooms with Unpredictable Designs