When I first saw the Star Wars Episode VII - The Force Awakens
teaser trailer (above) I think I was almost as excited as when my first born came into the world. The only thing that gave me a Jar Jar Binks-like sense of foreboding was that weird looking ball droid that rolled across a sandy vista; presumably Tatooine. “Oh man,“ I exclaimed to myself, with more than just a hint of indignant fan-boy rage, “I’m not sure about that weird looking ball thing!”
Fortunately, my troubled mind was eased when I stumbled upon this wonderful one page site: How Does BB-8 Work?
It gives us a brilliant explanation on how this thing actually works! They even hint at a Ralph McQuarrie connection.
A fascinating read… http://www.howbb8works.com/