The 12-ounce OmniLite stove can burn almost any fuel, including propane, diesel, and jet fuel. Made from titanium, it comes with three jets, each with a different diameter; a user swaps them out to adjust the air-to-fuel ratio depending on the fuel. Primus OmniLite Ti $218
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.