Link to discussion on BD Now! Yahoo group about Sonic bloom and similar techniques. Very interesting. Not sure if you can read this without being signed up to the list, but if not then you should be on the list! See also the website linked in the title of this post and likewise the relevant chapter in Secrets of the Soil...
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#Edit: I have now posted the text onto my blog, since it is not accessible without a Yahoo account. I intend to document my research project on this blog...
Monday 19 January 2009
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