"This machine is made using iron pipes, iron rings, springs, pulleys ropes, knife etc. The machine is fitted on coconut tree using two rings. There are 3 ropes and a string hanging from the machine. By pulling and releasing one rope passing through a pulley of the machine, the machine climbs on the tree step by step. There are systems to pull the knife for plucking coconut from the ground and to spray insecticides."
Link: Saves time, Does not require human to climb the tree
Problem Scale: Worldwide
News Link 5: