We've all seen the thermometer in our compost piles, racing up to 140 degrees. We know the energetic power of manure-enriched earth. Now Lynn Tomkins has found a Harvard team working in a power-less area of Sub-Saharan Africa to rub batteries and LED lights with underground bacteria-fueled batteries. A five gallon bucket, manure, mud and salt water...doesn't sound so different from some of our garden concoctions. Very cool!
Microbial Fuel Cell
Thursday, November 19, 2009
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