This new turbine needs no batteries and is said to cheaper and easier to install.

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Vibrations from passing trucks, the rumbling of speeding trains and even the footfall of busy city commuters could be captured and converted into energy to light walkways and buildings, engineers say. A London-based architectural firm is working on a project that aims to harness the pulse of a city and use it as a renewable energy source.

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Alternative energy map

June 20, 2006

This map surprised me.  Forty percent of Brazil's vehicles use a sugar-cane based ethanol for their vehicles.  The US uses 2.5%.  We are playing catch up to Brazil in soccer ethanol production. 

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