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Bacteria normally found 30km above the earth have been identified as generators of electricity.
Ha!
Bacillus stratosphericus – a microbe commonly found in high concentrations in the stratosphere orbiting the earth with the satellites – is a key component of a new 'super' biofilm that has been engineered by a team of scientists from Newcastle University.
The electrical output of the MFC (Microbial Fuel Cell) from 105W per cubic metre to 200W per cubic metre. Not that much but still not too bad.
MFC which work in a similar way to a battery, use bacteria to convert organic compounds directly into electricity by a process known as bio-catalytic oxidation. A biofilm – or 'slime' – coats the carbon electrodes of the MFC and as the bacteria feed, they produce electrons which pass into the electrodes and generate electricity.
http://www.physorg.com/news/2012-02-superbugs-space-source-power.html