Flintlock and bellows: what they have in common

1. Step 1. Flintlock — is part of — Musket. A flintlock.
2. Step 2. Musket — uses — Gunpowder. Gunpowder propels the bullet.
3. Step 3. Gunpowder — is made of — Charcoal. Gunpowder is a mix of saltpetre, sulphur and charcoal.
4. Step 4. Charcoal — is used in — Bloomery. The ore was reduced with charcoal.
5. Step 5. Bloomery — has part — Bellows. Bellows blew in air for a high temperature.

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