Michael from the MCP hinted to the following web page where a member of New Scientist rebuilt a "robot car" invented by the Greek scientist Heron 2000 years ago. From wood only, but it should be a nice finger exercise to do that with LEGO and the NXT also for you (it has been done with LEGO already in 2003). And you might even win a prize by doing so!
Ah, for some reasons I'm fascinated by re-doing treasures from mankind's heritage...
Ah, for some reasons I'm fascinated by re-doing treasures from mankind's heritage...