I have been following the
RepRap technology and the idea of 3D printing for the past year or so and I think this is one of those wonderful feats of engineering that will soon change how we live.
This group of engineers is working on a machine that will essentially replicate and will be able to build fully working 3D objects.
Star Trek style replicators.
It is complicated to understand the implications of this but I think this lecture does a pretty good job.
I love Science. Engineers are awesome and I'm always impressed by what they do.
Adrian Bowyer RepRap Lecture
The best part of it all. They are giving the information away. The Website even tells you how you can cheaply build your own replicator.
RepRap