The majority of engineers are men. The majority of U.S. Army soldiers are also men. So when a new piece of equipment is being designed--equipment that could change the outcome of a life or death situation--it's made with men in mind. Then, if women need it, they might just have to shoehorn themselves into the male variety, as is currently the case with body armor. But the Army recently announced it'll try to change that by testing new body armor built for women.
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.