Delft University of Technology graduate Rob Scharff created a soft robotic hand and arm that was designed as part of a Soft Robotics research project focusing on ways to integrate tactile materials more comfortable for humans to touch with robots. The soft robotic hand is made of a 3D printed soft, semi-flexible polyurethane-like material. It will shake hands with someone, and even respond to their grip, thanks to a complicated network of small air chambers inside of the hands palm that work like bellows. The shift in the air pockets causes the hand to grip firmer or lighter depending on the grip of the human attempting to shake it. You can read more about this amazing 3D printed soft robotic hand over on 3DPrint.com: http://3dprint.com/103471/3d-printed...robotics-hand/