Saturn V and electrical grid: what they have in common

1. Step 1. Saturn V — uses — Hydrogen. Hydrogen stages.
2. Step 2. Hydrogen — uses — Electrolysis. Hydrogen is produced by electrolysis of water.
3. Step 3. Electrolysis — is used in — Hall–Héroult process. Electrolysis of a melt.
4. Step 4. Hall–Héroult process — uses — Electrical grid. It needs enormous amounts of electricity.

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