The woman with hand amputation was wearing a prosthetic for several hours, so she was able to pick up the object
Hao Yang/Science and Technology University of China
A lightweight prosthetic hand that can move almost as freely as a human hand can help the wearer perform complex tasks such as tying the knot, capturing the hair, and playing chess.
To replicate the dexterity of the human hand, most commercial prostheses use electric motors or compressed air systems, which can make the system heavy and uncomfortable.
Source: www.newscientist.com
