Combustion chamber and transformer: what they have in common

1. Step 1. Combustion chamber — is part of — Ramjet. Fuel burns in compressed air.
2. Step 2. Ramjet — has part — De Laval nozzle. The nozzle accelerates the combustion products.
3. Step 3. De Laval nozzle — evolved from — Steam turbine. De Laval invented the nozzle for a steam turbine.
4. Step 4. Steam turbine — is part of — Nuclear power plant. Steam turns the turbines — as at a thermal station.
5. Step 5. Nuclear power plant — has part — Transformer. Transformers step up the voltage so the plant's power can travel far.

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