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Spinning a Yarn: Twisting Motion Makes Artificial Muscles (5 of 12)

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Caption: Miniature Greco-Roman style catapult driven by a wax-filled dual-Archimedean carbon nanotube yarn. This video relates to a paper that appeared in the Nov. 16, 2012, issue of Science, published by AAAS. The paper, by Márcio D. Lima at the University of Texas at Dallas in Richardson,Texas, and colleagues was titled, "Electrically, Chemically, and Photonically Powered Torsional and Tensile Actuation of Hybrid Carbon Nanotube Yarn Muscles."

Credit: Video courtesy of The Alan G. MacDiarmid NanoTech Institute, The University of Texas at Dallas

Usage Restrictions: Please cite the owner of the video when publishing. This video may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission.

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