Plutonium sphere and turbine: what they have in common

1. Step 1. Plutonium sphere — is part of — Nuclear weapon. A plutonium core.
2. Step 2. Nuclear weapon — works like — Nuclear reactor. The same physics: a controlled and an uncontrolled chain reaction.
3. Step 3. Nuclear reactor — is part of — Nuclear power plant. The reactor heats the coolant.
4. Step 4. Nuclear power plant — has part — Steam turbine. Steam turns the turbines — as at a thermal station.
5. Step 5. Steam turbine — is a kind of — Turbine. A kind of turbine.

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