A team at the Norwegian University of Science and Technology set out to solve that problem. The result is the Sashimi Bot, a three armed robot that can prepare sashimi from a raw salmon loin without a chef in sight. It divides the job neatly between its three arms. The first arm stabilizes and positions the salmon on the cutting board. The second holds a chef’s knife and slices . The third picks up each finished slice with chopsticks and transfers it to a serving tray. What makes this...