Nanotechnology is the science of smallness, the business of dealing with particles so tiny that no optical microscope can see them. The unit of measuring them, the nanometre, is a millionth of a millimetre - one 80-thousanth of a human hair.
It may sound like science fiction but it's actually science fact. Whether we like it or not, there are already products with nano-particles on our shop shelves. Some people don't like it. Prince Charles was reported as warning of the 'grey goo' that nanotechnology could inflict on us. No matter that he never used the phrase, the label stuck.
However, many argue that nanotechnology will be good for business.
