Learn to make charcoal—it burns hotter and cleaner than wood, essential for smelting iron. 4. The Knowledge Repository A civilization is only as strong as its hard-copy library .
He didn’t.
It’s the original battery. Use it to grind grain, saw timber, and eventually drive bellows for high-heat furnaces. the ultimate guide to rebuilding civilization
Then the scavengers found the library ship. Learn to make charcoal—it burns hotter and cleaner