Robots: Taking the Biscuit?

The day is dawning, so they say, when your personal domestic robot will trundle to fulfil your merest whim. It is already possible to program one to make you a cup of coffee. But what if you then decided you'd like a biscuit too - chocolate of course? Jane Lapotaire wanted a biscuit; but the robot didn't want to know. Q.E.D. explores what would be involved in designing a robot that could see, recognise, aim at reach for, hold and hand her this biscuit - and also discovers on the way quite a lot about what people can do.