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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Whoa. I have known about this drone since February and it finally flew. That is cool! And first one to comment!
I wonder why they chose to test it in open airspace rather than in a military control zone like over the southwest?
They tested it in the city because Boeing's phantom works is located at Lambert Airport in downtown St. Louis. By testing it in the same place where it was built, it saved them the hassle of transporting the drone across the country.