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Eindhoven University of Technology researcher Anne Hélène Gélébart shows the walking device. This small device is the world’s first machine to convert light directly into walking, simply using one fixed light source. (Photo credit: Bart van Overbeeke)

Scientists at Eindhoven University of Technology in the Netherlands and Â鶹´«Ã½ have developed a new material that can undulate and therefore propel itself forward under the influence of light.