Geiger counter and rolling mill: what they have in common

1. Step 1. Geiger counter — is made of — Helium. It is filled with an inert gas.
2. Step 2. Helium — is material for — Superconducting magnet. It is cooled with liquid helium.
3. Step 3. Superconducting magnet — uses — Cryogenics. Cooling with liquid helium.
4. Step 4. Cryogenics — is used in — Air separation. Liquefaction.
5. Step 5. Air separation — is used in — Steel works. The basic oxygen process uses industrial oxygen.
6. Step 6. Steel works — has part — Rolling mill. Rolling mills.

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