New docking system means drones can re-charge their batteriesl in mid-air

http://mashable.com/2015/04/27/new-drone-docking-system/

https://youtu.be/qQrVQ-wpUfM

One New Zealand-born man may have come up with a system to change that. Daniel Wilson, a researcher at the University of Sydney's Australian Centre for Field Robotics, has developed a method to allow UAVs to dock and recharge in mid-air, much like military jets do. He believes his team's successful UAV docking in November last year was a world first.