Toaster and cannon: what they have in common

1. Step 1. Toaster — works like — Air fryer. The same idea of heating food with an electric coil, but with a flow of air.
2. Step 2. Air fryer — has part — Electric fan. A fan.
3. Step 3. Electric fan — has part — Propeller. The blades.
4. Step 4. Propeller — is part of — Screw steamship. A propeller.
5. Step 5. Screw steamship — includes — Ironclad. An ironclad is a steamship clad in armour.
6. Step 6. Ironclad — has part — Cannon. Artillery.

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