CBBC Newsround - The poo powered robot invented by Bristol scientists: "
The EcoBotIII feeds off sewage, turning energy from the nutrient rich waste into electricity.
It's hoped the robot could help improve the way our waste is treated in sewage plants - bringing down energy costs.
It's made up of batteries that produce electricity, trays to hold the waste and even a fly trapping hat!"
'via Blog this'
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