Also search for electrorheological fluids which are electrically forced to change in viscocity rather than magnetorheological fluids which do the same magnetically.
Raavin
No, I can't find it again at the moment but I'm talking about little robots that join together in different shapes. I think I might have seen it on a documentary. I think each one is quite large at the moment. Not really nanites.
Just had a look, check this out...
Surprisingly, this is the first thing I've ever seen you post that seemed, well...sort of nuts. I'm pretty sure (well actaully I'm just guessing) that any specialist in fluid dynamics would feel that trying to control a fluid like that would be impossible with our current knowledge and control...