Anode (graphite) and tank: what they have in common

1. Step 1. Anode (graphite) — is made of — Graphite. The anode of a lithium-ion battery is graphite.
2. Step 2. Graphite — is material for — Ion thruster. The grids are graphite or molybdenum.
3. Step 3. Ion thruster — uses — Reaction force. Jet thrust.
4. Step 4. Reaction force — is used in — Machine gun. Recoil energy reloads the weapon.
5. Step 5. Machine gun — is part of — Tank. The Mark I’s machine guns.

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