Air fryer and bellows: what they have in common

1. Step 1. Air fryer — works like — Oven. An air fryer is a small oven where a fan drives the hot air.
2. Step 2. Oven — is made of — Clay. Baking ovens were shaped from clay.
3. Step 3. Clay — is material for — Bloomery. A bloomery is a clay shaft.
4. Step 4. Bloomery — has part — Bellows. Bellows blew in air for a high temperature.

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