Taking its inspiration from the grasshopper, a tiny two-legged robot that stores elastic energy in springs has leaped 27 times its own height, smashing the record of 17 times set by a previous robot.

Its creators hope that swarms of such hopping robots could spread out to explore disaster areas, or even the surfaces of other planets.

The robot is only 5 centimetres tall, and weighs just 7 grams. A motor designed to power the vibration unit of a pager drives a system of gears that gradually wind two metal springs.  Read More...