An oil company helping launch an electric car? The jokes write themselves. (Launch it where, into space?) But it's true: low-speed electric carmaker Electrovaya launched its Maya-300 car this week with help from ExxonMobil. The oil giant's "SuperPolymer" separator film is used in production of Electrovaya's lithium-ion battery. But wait, there's more.
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.