In the next five years, the world will need a hundred-fold increase in nano workers — the people who will build nanomaterials and develop new uses for them. In Colombia, some of these workers might very well come from the slums. At least according to one nano educator.
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.