While watching news footage of a wildfire raging, maybe you've been struck by frustration at the lack of a high-tech, super-sized firefighting solution. Why, in 2009, don't firefighters have access to a super water-cannon? Where is the quick-hardening smothering shell? How much longer will we wait for a mountain-climbing hydro-Roomba?
The answer may be closer than you think. I was treated to a demonstration of the largest firefighting vehicle in the world, the Evergreen Supertanker.
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.