Nanotechnology is the art of making very small machines that will perform useful functions. Some methods are known, no useful functions have been achieved yet.
Nanotechnology is new and little understood, but that has not stopped people from coming up with all sorts of 'Frankenstein' and 'grey goo' scenarios about it.
At the moment, nanotechnology is easy to dismiss or rule out, but there are some interesting developments around that will be used somewhere, at some time.
This file is http://members.ozemail.com.au/~macinnis/scifun/splatnano.htm, first created on February 16, 2008. Last recorded revision (well I get lazy and forget sometimes!) was on February 16, 2008.