For his Hackaday Prize entry, [Matt] is building a small kiln for melting metals and firing clay. He’s making this kiln out of materials anyone can acquire — dirt and a bit of nichrome wire.

The furnace was tested with wood fuel and some ore was melted but produced no iron. High temperature were ... To test its melting ability, bog ore was found further down the creek and roasted.

The melting starts at 11 p.m., and by midnight, the furnace is clanking and ... He'd been pouring iron when he turned away, and there was a small spill. "Apparently it started running out and ...

the scientists will test a small rotary kiln on a laboratory scale at the DLR solar furnace in Cologne. A number of tests will involve melting small batches of aluminium scrap, and then analysing the ...