This robotic kangaroo can hop forever

Dubbed BionicKangaroo, the robot is controlled by gestures and can efficiently recover energy from one jump to help it make the next. It does this by using an elastic spring, which partially ‘charges’ the legs on landing.

This is similar to the technique used by kangaroos, who use spring-like tendons to hop from one place to another. Besides, the robot is fitted with a small storage tank to provide high pressure air for the pneumatic muscles for movement.

“With the BionicKangaroo we have precisely reproduced the most characteristic features of natural kangaroos: recuperating and storing energy, and then releasing it once more in the next bound,” Festo’s Dr Heinrich Frontzek said. The entire robotic animal weighs just 15 lb (7kg) and stands 3ft 3inches (1m), but it can jump 1ft 3inches (40cm) vertically and 2ft 7 inch (0.8 metres) horizontally.