![tetraederKlein.jpg](http://www.randform.org/blog/wp-content/2006/08/tetraederKlein.jpg)
A very worthwhile-to-visit website is the one of the US National Aeronautics and Space Administration NASA. Here one can e.g. surf to the remarkable ANTS – Autonomous NanoTechnology Swarm webpage (also autonomous in terms of graphic design…). (more…)