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How to Build a Medium Sized Biogas Plant
biogas from leftovers
Make Energy From Weeds
DIY Fuel Ionizer for real cheap. Really works.
How to build a fire breathing dragon mask
The Rubens' Tube: Soundwaves in Fire!
Make a Microbial Fuel Cell (MFC) - Part II
Make a Microbial Fuel Cell (MFC) - Part III
How to save the world!!!
Posted:Aug 8, 2009
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