By now, you're no doubt well acquainted with the Albert Hubo Einstein robot developed by the mad scientists at KAIST, but some researchers at the University of California, San Diego has also been working on their own Einstein bot for the past little while, and they've now managed to teach it some new tricks. While the bot has previously been able to display a full range of expressions through some pre-programmed facial movements, it's now able to teach itself how to smile or display other emotions thanks to a new trial-and-error technique dubbed "body babble." That apparently work