Primitive Technology creates one of the coolest “campfires” we’ve seen, turning mud, sticks, and bark into a forge blower capable of producing small amounts of iron from naturally occurring ingredients.
The “forge blower” starts as a paddle-based fan. This is enclosed in a housing to direct airflow into a fire. He constructs a basic furnace housing around the fire, and sets to work creating iron from an ore of iron oxide bacteria, charcoal, and wood ash.
Want to learn more? Check out his YouTube page to read the entire story.