Self-assembling material pops into 3D

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This bistable auxetic material gets bigger in all directions when you stretch it. It's also becomes 3 dimensional!

The paper by Tian Chen and colleagues is:
Bistable auxetic surface structures, ACM Transactions on Graphics (TOG), 40(4), 1-9. (Chen, T., Panetta, J., Schnaubelt, M., & Pauly, M. (2021)

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