Spoked wheel and steam turbine: what they have in common

1. Step 1. Spoked wheel — evolved into — Bicycle wheel. The bicycle wheel inherited spokes, but in tension rather than compression.
2. Step 2. Bicycle wheel — has part — Pneumatic tyre. The tyre softens bumps and improves grip.
3. Step 3. Pneumatic tyre — is part of — Landing gear. Aircraft tyres.
4. Step 4. Landing gear — is part of — Aeroplane. Landing gear.
5. Step 5. Aeroplane — is used in — Aircraft carrier. Basing aircraft.
6. Step 6. Aircraft carrier — has part — Steam turbine. Turbines (powered by a reactor on nuclear carriers).

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