Muscles are attached to bones by tendons. Muscles contract to move our bones by pulling on them. However, muscles can only pull; they cannot push. This is why they usually work a joint in pairs. One ...

The prosthesis, attached to an amputated limb, can communicate with the brain to provide sensory feedback to the user. Credit: Stephanie Ku When you flex your bicep, your muscle sends information to ...

Modern prostheses have come a long way from their hand hook and pegleg predecessors. Although they look a lot more like the real thing, they are still lacking in the natural feel department. To ...