On: The Self-Assembly Line : When the Pieces Put Themselves Together

[sp332]

Magnets.

[sravfeyn → sp332]

Obviously not! That would be kind of mechanical then, and it had nothing to Molecular Biology

[sp332 → sravfeyn]

From the article: Those toys are based on biological forms — an enzyme, a protein, a virus — and are made up of four, eight, or 12 plastic parts with tiny magnets inside. The shape in the video clearly uses magnets to assemble.