Kite sail cloth and boiler: what they have in common

1. Step 1. Kite sail cloth — is part of — Kite. Cloth or paper on which the wind pushes.
2. Step 2. Kite — evolved into — Glider. Lilienthal and Cayley studied the wing with kites and gliders.
3. Step 3. Glider — evolved into — Aeroplane. The Wrights added an engine to a glider.
4. Step 4. Aeroplane — is used in — Aircraft carrier. Basing aircraft.
5. Step 5. Aircraft carrier — has part — Steam turbine. Turbines (powered by a reactor on nuclear carriers).
6. Step 6. Steam turbine — has part — Boiler. Steam from the boiler.

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