Robot snail powered by laser

Scientists in China and Poland have invented a laser-powered micro-robot that gets around by mimicking the adhesive locomotion of slugs and snails.

The 10-millimeter-long robot draws its energy from a laser beam, and can move along horizontal surfaces, climb vertical walls and even make its way across glass ceilings while upside down.

Taking inspiration from the natural world is common in the field of micromechanics. Other robot-makers have designed devices that mimic the movement of caterpillars, earthworms and lizards. It is thought that one day such robots could help industrial workers perform tasks in hard-to-reach areas, like the interior of jet engines.