Surprisingly simple scheme for self-assembling robots
Oct 04, 2013 by Larry Hardesty

A prototype of a new modular robot, with its innards exposed and its flywheel — which gives it the ability to move independently — pulled out. Credit: M. SCOTT BRAUER

http://phys.org/news/2013-10-surprisingly-simple-scheme-self-assembling-robots.html#jCp