Braço robótico de Sun Yuan e Peng Yu para o Museu Guggenheim em 2016.
Placed behind clear acrylic walls, their robot has one specific duty, to contain a viscous, deep-red liquid within a predetermined area. When the sensors detect that the fluid has strayed too far, the arm frenetically shovels it back into place, leaving smudges on the ground and splashes on the surrounding walls.