a 3D printer is a revolutionizing field ranging from jewelry-making to jet engine fabrication. The 3D printer project was originally about camouflage-cuttlefish. Cuttlefish are large elongated body animals. They have tentacles around their mouth and of course they can camouflage. When the material is printed it's rigid polymers are stuck in a fixed order that can not change positions relative to one another. By the way polymers are molecular building blocks for many plastics.
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