Artificial foil undulates under the influence of light
Scientists from TU Eindhoven and Kent State University have developed a material that undulates under the influence of light and can propel itself in this way. They clamped a strip of this new polymer in a rectangular frame and when illuminated the entire assembly takes a walk all by itself. This device, with the dimensions of a paperclip, is the world's first walking machine that converts light into locomotion, simply driven by a single fixed light source. The researchers have published about this in the scientific magazine Nature.