Petrol and kiln: what they have in common

1. Step 1. Petrol — is used in — Internal combustion engine. The fuel of a petrol engine.
2. Step 2. Internal combustion engine — has part — Flywheel. The flywheel smooths out the engine’s strokes.
3. Step 3. Flywheel — is part of — Potter’s wheel. A lower flywheel turned by the foot.
4. Step 4. Potter’s wheel — is used in — Pottery. The wheel made shaping vessels faster and more even.
5. Step 5. Pottery — uses — Kiln. Firing in a kiln makes clay strong.

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