About a year ago we got our first look at DARPA’s Cheetah ‘bot via a concept drawing that looked more like a storyboard frame for a Transformers film than real, live robotics. Today, we get to see much more than a concept.
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.
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