ネイティブが教える英会話のジェムスクール☆Teachers☆

This is BB-8. If you saw the new star wars movie you would have seen him and laugh at his funny antics. But did you know that it's not just a prop they used in a movie? It actually moves just like you see in the movie. It's really interesting science that causes BB-8 to function like he does.

As BB-8 moves, The RC robotic ball uses a gyroscope to determine which way is down and two wheels to move the sphere from inside. The base plate (batteries included) serves as a counterweight to keep the wheels acting against the lower half of the sphere. There's also a vertical bearing that helps to keep the wheels in contact with the walls.

As to how the head stays upright is a mystery! Disney invented this technology but it's not really understood how it works.

Pretty cool huh?

- James Barbosa