Artificial limbs, or prosthetics, have been recorded in history as early as ancient Egypt. Innovations over the centuries mean that many who are missing or have lost a limb, whether through trauma, disease, or congenital condition, can be fitted with limbs that not only look authentic, but also effectuate the movements of human limbs. This wide-ranging work details the kinds of prostheses available today, how they're made, how they work, the challenges...