Electromagnetic induction and sewage treatment plant: what they have in common

1. Step 1. Electromagnetic induction — is used in — Transformer. Induction between the windings.
2. Step 2. Transformer — is part of — Nuclear power plant. Transformers step up the voltage so the plant's power can travel far.
3. Step 3. Nuclear power plant — is made of — Concrete. The containment is concrete.
4. Step 4. Concrete — is material for — Sewage treatment plant. The tanks are concrete.

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