Tumble dryer and newcomen engine: what they have in common

1. Step 1. Tumble dryer — has part — Heating element. A heater.
2. Step 2. Heating element — is part of — Espresso machine. A heater.
3. Step 3. Espresso machine — has part — Boiler. A boiler.
4. Step 4. Boiler — is part of — Newcomen engine. Steam from the boiler.

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