Making a robot that looks and behaves like a human being has been the
subject of many popular science fiction movies and books. Although the
development of such a robot facesmanychallenges,
themakingofavirtualhumanhaslongbeenpotentiallypossible. With recent
advances in various key technologies related to hardware and software,
the making of humanlike robots is increasingly becoming an engineering
reality. Development of the required hardware that can perform humanlike
functions in a lifelike manner has benefitted greatly from development
in such technologies as biologically inspired materials, artificial
intelligence, artificial vision, and many others. Producing a humanlike
robot that makes body and facial expressions, communicates verbally
using extensive vocabulary, and interprets speech with high accuracy is
ext- mely complicated to engineer. Advances in voice recognition and
speech synthesis are increasingly improving communication capabilities.
In our daily life we encounter such innovations when we call the
telephone operators of most companies today. As robotics technology
continues to improve we are approaching the point where, on seeing such
a robot, we will respond with ''Wow, this robot looks unbelievably
real!'' just like the reaction to an artificial flower. The accelerating
pace of advances in related fields suggests that the emergence of
humanlike robots that become part of our daily life seems to be
imminent. These robots are expected to raise ethical concerns and may
also raise many complex questions related to their interaction with
humans.