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Self‐Dancing Rings
By exploring self‐sustained snapping instabilities, in article number 2207372, Yao Zhao, Jie Yin, and co‐workers report a self‐dancing and crawling wavy ring under heat and light. This ring crawls like a front‐wheel or rear‐wheel car and can even self‐navigate through a narrow space that is smaller than its ring size via snapping and adaptive interactions.
Harnessing snapping, an instability phenomenon observed in nature (e.g., Venus flytraps), for autonomy has attracted growing interest in autonomous soft robots. However, achieving self‐sustained snapping and snapping‐driven autonomous motions in soft robots remains largely unexplored. Here, harnessing bistable, ribbon ring‐like structures for realizing self‐sustained snapping in a library of soft...
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