Computer scientist Alan Turing's infamous Turing test--possibly the thing he's known best for out of a long resume--is a simple, solid bar for artificial intelligence that's held up since the 1950s. But this weekend that bar was nearly reached. Judges surveyed in the largest-ever Turing competition agreed 29 percent of the time that Eugene Goostman was a 13-year-old boy, and that was good enough for the chatbot to win.
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.