Your weekly Local Running Newsletter has everything you need to lace up! Subscribe today. Ron Walline of Ancient Pathways demonstrates how to make a fire with flint and steel.

Without fire, we die. In this raw episode of survival blacksmithing, we forge a flint striker from raw steel - no power tools, no modern gear. Just hammer, heat, and instinct. One mistake, and it ...

Using flint and steel to start a fire harnesses a side effect of oxidation: heat. Related: Get the world’s most fascinating discoveries delivered straight to your inbox.