A list of the 2 titles included in the .zip file: Flint_Steel_And_Battery.pdf (?) The_Hand_Drill-Fire_Starting_Technique.pdf (?) [IMG]
A three-page file, offering instruction on making charcoal. A number of photos, although small and fairly poor resolution, are included in this...
Okay. Hopefully someone here can help me answer a question (or two) that I have regarding this technology. Recently, as anyone can see, I have...
What can biogas do for you? Site Credit: Build A Biogas Plant [IMG]
Before Building Anything. Site Credit: Build A Biogas Plant [IMG]
Biogas Notes, By Paul Harris. [IMG]
A US Department of Energy/National Renewable Energy Laboratory publication (freely available at http://www.nrel.gov/docs/legosti/old/519R.pdf). A...
Separate names with a comma.
