Sextant and electrical grid: what they have in common

1. Step 1. Sextant — has part — Mirror. Mirrors — the principle of double reflection.
2. Step 2. Mirror — is part of — Solar concentrator. Mirrors concentrate the light.
3. Step 3. Solar concentrator — has part — Steam turbine. Heated steam turns a turbine.
4. Step 4. Steam turbine — is part of — Nuclear power plant. Steam turns the turbines — as at a thermal station.
5. Step 5. Nuclear power plant — has part — Transformer. Transformers step up the voltage so the plant's power can travel far.
6. Step 6. Transformer — is part of — Electrical grid. Transformer substations.

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