Multi rotors perform a lot of useful tasks, but here’s one of the best I’ve ever seen. Henry Evans, who has been paralyzed by a type of stroke, uses a quadrotor to navigate space. The aircraft’s FPV view allows Henry to look around a garden or take a stroll across campus and gives him greater accessibility to the world. This is worth watching!
FPV drone lets a paralyzed man stroll outdoors
Source: http://www.ted.com/talks/henry_evans_and_chad_jenkins_meet_the_robots_for_humanity.html
The Truth About Drones 