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I invented the Bow Blower, a combination of the bow drill and forge blower to make a device that can force air into a fire while being easy to construct from commonly occurring natural materials using only primitive technology. I made a simple mud furnace for the blower. Then I collected orange iron bacteria from the creek iron oxide, mixed it with charcoal powder carbon to reduce oxide to metal and wood ash flux to lower the melting point and formed it into a cylindrical brick. I filled the furnace with charcoal, put the ore brick in and commenced firing. The ore brick melted and produced slag with tiny, 1mm sized specs of iron through it
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