LONDON, ENGLAND - OCTOBER 08: A 3D printer constructs a model human figure in the exhibition '3D: printing the future' in the Science Museum on October 8, 2013 in London, England. The exhibition, which opens to the public tomorrow, features over 600 3D printed objects ranging from: replacement organs, artworks, aircraft parts and a handgun. (Photo by Oli Scarff/Getty Images)
