Video of the week: Tarzan the farming robot

World population growth may have halved since its peak in the 1960s, but the number of people in the world is still increasing and they all need feeding. Increasing automation in agriculture is helping to meet this challenge, and the Institute for Robotics and Intelligent Machines (IRIM) at the Georgia Institute of Technology is developing robots that its researchers hope will be able to save farmers from laborious fieldwork in monitoring the condition of their crops.

The latest addition to their armoury was designed after a sloth, but moves more like a gibbon. The two armed robot is designed to hang from a cable strung the length of the line of crops, and move by brachiating – swinging from hand to hand – along the cable. Its sensor platform, housed at the junction of the arms, can then take photos and collect other data continuously. They are also able to switch from one parallel cable to another, allowing them to cover an entire suitably-rigged field.