image: Scanning electron microscope image of a two-ply, carbon nanotube yarn that can be deployed as a torsional muscle in a motor. This image 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." view more
Credit: Image courtesy of <i>Science</i>/AAAS