Most circuses have a unicyclist that never fails to impress me, but this time round we have a robot and not a human performing the feat. Known as the Murata robot, it uses a fair number of internal gyroscopes to remain vertical while the electronic eye and complex software helps it steer clear of of obstacles. It is also more than able to change direction without losing its balance for a flawless performance. Now, if only it could do all that and juggle a few balls, folks at the circus ought to have something to shudder about. Would make for an interesting R/C toy IMHO.