Guided missile and lathe: what they have in common

1. Step 1. Guided missile — evolved from — Rocket. A rocket with guidance.
2. Step 2. Rocket — uses — Reaction force. A rocket moves by reaction force.
3. Step 3. Reaction force — is used in — Ion thruster. Jet thrust.
4. Step 4. Ion thruster — is made of — Tungsten. The cathodes are tungsten.
5. Step 5. Tungsten — is material for — High-speed steel. Tungsten.
6. Step 6. High-speed steel — is used in — Lathe. Cutting tools.

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