EMMETT WARREN, NEWS EDITOR [email protected]Researchers at the University of Warsaw’s Faculty of Physics collaborated with researchers from the Polish Academy of Science and Xi’an Jiaotong-Liverpool University to demonstrate a rotary micromotor powered with light using liquid crystal elastomer technology. The 5-mm-diameter ring, driven and controlled by a laser beam, can rotate and perform tasks by rotating another element installed on the same axis. Liquid crystal elastomers (LCE) are a group of materials that enable construction of small, moving, or mobile devices. 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