Robot rakes Olympic athletes' movements into sand at Tokyo park

The Constant Gardeners, an installation by Jason Bruges Studio, is on view at Ueno Park in Tokyo until September 5. Four two-meter-tall robotic arms, salvaged from a US car factory, rake a large canvas of gravel to create evolving illustrations of Olympic and Paralympic athletes' movements. Algorithms analyze past competition footage to depict precise sports exercises or moments in time. The work combines Japanese Zen garden tradition with computing and industrial robotics, projecting viewers into the future while addressing environmental issues through material reuse.