In the James Bond movie Skyfall, there is a frightening moment when the bad guy of the film removes his prosthetic mouth to show his damaged face. We are scared, but amazed at the possibility. Could it be possible to replace parts of our body and even improve on the original? The UK’s Channel 4 has shown a documentary called ‘How to Build a Bionic Man’, featuring psychologist Bertolt Meyer who himself has a bionic hand. ‘Rex’, the Bionic Man, brings together scientists working on the latest research to test the limits of prosthetic technology.