Reaction force and autoclave: what they have in common

1. Step 1. Reaction force — is used in — De Laval nozzle. It accelerates gas, creating thrust.
2. Step 2. De Laval nozzle — evolved from — Steam turbine. De Laval invented the nozzle for a steam turbine.
3. Step 3. Steam turbine — has part — Boiler. Steam from the boiler.
4. Step 4. Boiler — is part of — Autoclave. A steam generator.

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