Why do you wear a hat? The hammer paused, eyes as dark as coal and wild as the sky during a storm lifted. A face wizened by time, weather and work lit with a gentle smile. A gruff, but amused voice replied. "It keeps my ideas from floating away."
Forging The Iron Age blacksmith would make a sword by heating a bar of iron over a charcoal fire until it was white-hot and then hammering it into shape before it cooled. By reheating quenched iron to a moderate temperature and then allowing it to cool slowly, the metal would become much less brittle.