Just a week after Congress finally passed an FAA spending bill requiring the aviation regulator to expedite the integration of unmanned aerial systems (UAS) into the national airspace, President Obama has already signed it into law. What does that mean? The bill requires full integration of UAS into the national regulatory framework by Sept. 30, 2015, but you’ll start seeing drones in the sky sooner than that.
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.