Scientists have found that these worms self-assemble into structures that allow them to survive on broad, sandy beaches. One of the phases of this self-assembly is a big, floating worm spiral.
Researchers at New York University engineered tiny spheres that self-assemble to form massive, ever-changing flocks. All it took was some chemistry, some physics, and the flip of a light switch.
We've heard a lot about self-assembling structures, but we rarely get to see a cool visual demonstration. This video shows several shapes and even complex, interlocking structures being assembled through "microfluidic channels."