Liquefied natural gas and typewriter: what they have in common

1. Step 1. Liquefied natural gas — uses — Cryogenics. Liquefaction.
2. Step 2. Cryogenics — is used in — Superconducting magnet. Cooling with liquid helium.
3. Step 3. Superconducting magnet — is part of — MRI. A superconducting magnet.
4. Step 4. MRI — uses — Computer. Image reconstruction.
5. Step 5. Computer — has part — Keyboard. The keyboard is the main input device.
6. Step 6. Keyboard — is part of — Typewriter. The keys drive levers with type.

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