Known as M-Blocks, the robots are cubes with no external moving parts. Nonetheless, they're able to climb over and around one another, leap through the air, ...
MIT Scientists Create Self-Assembling Robotic Cubes
Macroscopic self-assembly supramolecules
Introduction to Directed Self Assembly (DSA)
(Almost) Self assembling moon base
Small cubes Robot that self-assemble
Read more about The Geek Mind.