solarbobky

Lehmans has a hand powered "high speed grain mill" and belt powered "high speed mill" that should do a nice job for smaller quantities. Bob

There's a nice looking rock crusher at ebay with the description: "Rock Stone Brick Jaw Crusher Gold Mining Prospecting". Should do the job. Bob

The quick and easy way to add a little nitrogen is pee on it. See "Liquid Gold" by Carol Steinfeld. "

Hey out there. I caught John Todd in Berea a while back. I'm a big fan of his work at New Alchemy Institute and Ocean Arks International. He talked about his Living Machines and his recent work: A New Shared Economy For Appalachia He mentioned biochar which got me interested. I'm a back to the land, alternative energy, organic gardening, hippie type mechanical engineer. Big project lately is refurbishing a hydroelectric plant. Peace, Bob