Prefabrication and turbojet engine: what they have in common

1. Step 1. Prefabrication — uses — Interchangeable parts. Standard elements.
2. Step 2. Interchangeable parts — is used in — Revolver. Colt used machine production of interchangeable parts.
3. Step 3. Revolver — has part — Cartridge. Cartridges.
4. Step 4. Cartridge — is part of — Machine gun. Cartridges in a belt.
5. Step 5. Machine gun — uses — Reaction force. Recoil energy reloads the weapon.
6. Step 6. Reaction force — is used in — Turbojet engine. Thrust is the reaction of the jet.

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