Docking and steam turbine: what they have in common

1. Step 1. Docking — is used in — Soyuz. Docking.
2. Step 2. Soyuz — has part — Heat shield. A heat shield.
3. Step 3. Heat shield — is part of — Space Shuttle. Heat-shield tiles.
4. Step 4. Space Shuttle — has part — Solid rocket motor. Boosters.
5. Step 5. Solid rocket motor — has part — De Laval nozzle. A nozzle.
6. Step 6. De Laval nozzle — evolved from — Steam turbine. De Laval invented the nozzle for a steam turbine.

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