With the premiere of the newest Star Wars movie on Friday, it is safe to say that social media websites are featuring massive amounts of content relating to the movie. One of the major questions about the movie right now is, "How does BB-8 really work?" The linked website features a section entitled "Patent" and this shows both an illustration of the patent, as well as a description of how BB-8 may work.
The website states that "The first thing we have learned from this patent is that there is a concept in robotics called holonomic motion. Ground-based holonomic robots are those who can instantaneously move in any direction on the horizontal plane." This may just be the answer to how BB-8 moves!
Click on the linked article for more information!