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Granular material in a stretchy bag flows around and conforms to objects. Suction from a vacuum jams and solidifies the granular material, which pinches and holds each object.
Reporters may freely use this video. Credit format: John Amend, Cornell University. This video is also published as online supplementary material along with the article: Proceedings of the National Academy of Sciences, 107 (44), 18809 (2010).
Robotic gripper based on the jamming of granular materials offers an alternative to robotic fingers.