Barbie is one of the most successful children's toys in history, spawning a multimedia franchise that includes merchandise, video games and a live-action film. Since US toy giant Mattel launched the original Barbie in 1959, more than 1 billion of the dolls have been sold worldwide. Certainly, Barbie's looks have been tweaked over the years to reflect changing beauty ideals and societal shifts. But according to a new study, one subtle change to Barbie has gone largely unnoticed – until now. Scientists in Australia have found that Barbies today have flatter feet than they did in past decades.

In the middle of the DRC Finals last year, SRI's DURUS robot slowly and steadily spent over two and a half hours walking 2 kilometers on a single battery charge. This was a Big Deal: DARPA had recognized from the beginning that the original version of ATLAS was horrendously impractical (at least in terms of locomotion), so they funded two different teams, one from SRI and one from Sandia, to design a humanoid robot that could walk 20x more efficiently. SRI's DURUS came very, very close to this goal, achieving a cost of transport of just 1.5 through an innovative combination of hardware, software, and especially gait control. The guy whose job it is to play with this robot is Professor Aaron Ames, who spent much of the last year moving his Advanced Mechanical Bipedal Experimental Robotics Lab from Texas A&M to Georgia Tech, which is why we haven't heard anything exciting about DURUS since the DRC. It sounds like they just got everything up and running a few months ago, and they're now ready to share an impressive new behavior: DURUS can now walk just like a human, while wearing normal (and stylish) human shoes. You may remember that back at the DRC Finals, we asked Ames what he was hoping to do next with DURUS.