Launch escape tower and tank: what they have in common

1. Step 1. Launch escape tower — is part of — Saturn V. A tower that pulls the spacecraft away in an emergency.
2. Step 2. Saturn V — uses — Liquid-propellant rocket engine. All stages use liquid-propellant engines.
3. Step 3. Liquid-propellant rocket engine — has part — De Laval nozzle. A nozzle.
4. Step 4. De Laval nozzle — uses — Reaction force. It accelerates gas, creating thrust.
5. Step 5. Reaction force — is used in — Machine gun. Recoil energy reloads the weapon.
6. Step 6. Machine gun — is part of — Tank. The Mark I’s machine guns.

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