Quartz glass capsule and cannon: what they have in common

1. Step 1. Quartz glass capsule — is part of — Halogen lamp. It withstands high temperature.
2. Step 2. Halogen lamp — is made of — Tungsten. Tungsten.
3. Step 3. Tungsten — is material for — Ion thruster. The cathodes are tungsten.
4. Step 4. Ion thruster — uses — Reaction force. Jet thrust.
5. Step 5. Reaction force — is used in — Firearm. Recoil is Newton’s third law.
6. Step 6. Firearm — includes — Cannon. A firearm.

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