Small modular reactor and laser: what they have in common

1. Step 1. Small modular reactor — has part — Control rod. Control rods.
2. Step 2. Control rod — is made of — Silver. Control rods of pressurized water reactors are a silver–indium–cadmium alloy.
3. Step 3. Silver — is material for — Mirror. A silver coating.
4. Step 4. Mirror — is part of — Laser. A resonator made of mirrors.

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