Perching Robot Glider Nails Simulated Powerline Landings
The biggest thing holding drones back right now (especially small, inexpensive drones) is arguably battery life. It's really bad. For a drone that can hover and carry any sort of payload, you're looking at 10, maybe 20 minutes tops. And even fixed-wing drones don't do all that much better. This is such an issue that CyPhy Works has developed drones that are continuously supplied with power through a tether, and there are other, slightly crazier (or less immediately practical, let's say) ideas about how to provide drones with power on the fly, like lasers or midair wireless power transfer.
One less crazy idea is to just have drones perch: that is, to spend as much time as possible not flying by finding somewhere near where they need to be that they can land and sit. And wouldn't it be great if drones could recharge themselves by perching on powerlines and harnessing the magnetic fields that they emit?