Smelting iron ore in a microwave  JUL 08 2009

Holy crap, did you know that you can smelt iron ore with a microwave?

This video shows part of an attempt to build a toaster from scratch.

Finding ways to process the raw materials on a domestic scale is also an issue. For example, my first attempt to extract metal involved a chimney pot, some hair-dryers, a leaf blower, and a methodology from the 15th century -- this is about the level of technology we can manage when we're acting alone. I failed to get pure enough iron in this way, though if I'd tried a few more times and refined my technique and knowledge of the process I probably would've managed in the end. Instead I found a 2001 patent about industrial smelting of Iron ores using microwave energy.

Microwaves, as we all know, are just so much more convenient -- and so I tried to replicate the industrial process outlined in the patent using a domestic microwave. After some not-so-careful experimentation which necessitated another microwave, followed by some careful experimentation, I got the timing and ingredients right and made a blob of iron about as big as a 10p coin.

(via mr)

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