patella.whack writes: Researchers from the University of Illinois and Northwestern University have demonstrated tiny spheres that synchronize their movements as they self-assemble into a spinning microtube. Such in-motion structures, a blending of mathematics and materials science, could open a new class of technologies with applications in medicine, chemistry and engineering. "It's spontaneous. We don't force it to form,"
... "We saw that during the self-assembly process, the synchronization also happens. If you look at the spheres, every one is doing a different thing. Only when they come in close contact will they do something cooperatively." Very cool 2 min video here.