Gerber wowed us with a folding camp ax. Called the Kick Axe, it's strong enough to chop wood and pound tent stakes, but the whole thing folds up into its own handle. They barely let us see it, as it won't be out until 2010, so we weren't able to determine much about the locking mechanism or its mechanics at this point, but we're first in line to play with it when the design is final.
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.