This Week, Harvard Scientists Have Just Discovered Dirt!

No more alkaline batteries. No more NiCad's. No NiMH's. No Lithium. Forget all of those hazardous chemical reactions in the batteries and think eco-friendly. Professor David Edwards did.

Edward's group Lebônê, incubated at Harvard, has developed a way to make batteries from nature. Microbial fuel cell (MFC) batteries generate energy from bacteria in the soil and consist of a graphite-cloth anode, a chicken-wire cathode, manure and mud, a sand ion barrier, and salt water as electrolytes.

Save developing nations, save the planet, in one word: revolutionary.

Popular Mechanics named the Harvard team one of the 10 Most Brilliant Innovators of 2009.