Automatic transmission and oil lamp: what they have in common

1. Step 1. Automatic transmission — has part — Torque converter. A torque converter.
2. Step 2. Torque converter — has part — Turbine. The turbine wheel.
3. Step 3. Turbine — is part of — Turbojet engine. The turbine drives the compressor.
4. Step 4. Turbojet engine — uses — Kerosene. Jet fuel is kerosene.
5. Step 5. Kerosene — is used in — Kerosene lamp. The fuel.
6. Step 6. Kerosene lamp — evolved from — Oil lamp. A development of the oil lamp.

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