Back in 2009, we wrote about a contact lens in the works that displayed visual feedback right before your eyes, Terminator style. Well, two years and a few months later, Professor Babak Parviz has a working model. He has given the new lens to rabbits, and reports complete success.
At 18 months old, babies have begun to make conscious delineations between sentient beings and inanimate objects. But as robots get more and more advanced, those decisions may become harder to make. What causes a baby to decide a robot is more than bits of metal? As it turns out, it takes more than humanoid looks--babies rely on social interaction to make that call.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.