Cycle rickshaw and turbine: what they have in common

1. Step 1. Cycle rickshaw — evolved from — Michaux velocipede. A cycle rickshaw is a three-wheeled machine built on bicycle pedal mechanics.
2. Step 2. Michaux velocipede — is made of — Wrought iron. The frame is wrought iron.
3. Step 3. Wrought iron — is material for — Ocean liner. The hull is iron, later steel.
4. Step 4. Ocean liner — has part — Turbine. Large liners run on steam turbines.

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