Scientists 3D Print a Complex Robotic Hand With Bones, Tendons, and Ligaments

We don't think twice about using our hands throughout the day for tasks that still thwart sophisticated robots--pouring coffee without spilling when half-awake, folding laundry without ripping delicate fabrics. The complexity of our hands is partly to thank. They are wonders of biological engineering: Hard skeleton keeps their shape and integrity and lets fingers bear […]