Large Hadron Collider and bellows: what they have in common

1. Step 1. Large Hadron Collider — has part — Superconducting magnet. Superconducting magnets.
2. Step 2. Superconducting magnet — uses — Cryogenics. Cooling with liquid helium.
3. Step 3. Cryogenics — is used in — Air separation. Liquefaction.
4. Step 4. Air separation — is used in — Steel works. The basic oxygen process uses industrial oxygen.
5. Step 5. Steel works — has part — Blast furnace. Blast furnaces.
6. Step 6. Blast furnace — has part — Bellows. Air was blown in by bellows, later by blowers.

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