This bizarre smiling face is made from living human skin cells, and its creators say it could one day be attached to a humanoid robot to help machines communicate more effectively.
Grown on a collagen scaffold and placed on a 3D-printed resin base, the face contains ligament-like structures, which, like the tissue of real animals, give it a life-like strength and flexibility. However, it can’t currently survive long in the open air because it doesn’t have…
