Suspended test mass mirror and electrical grid: what they have in common

1. Step 1. Suspended test mass mirror — is part of — LIGO. Suspended mirrors.
2. Step 2. LIGO — uses — Laser. A laser.
3. Step 3. Laser — is made of — Semiconductor. Maiman’s first laser was a ruby crystal; today it is more often a semiconductor.
4. Step 4. Semiconductor — is used in — Rectifier. Modern rectifiers are semiconductor diodes.
5. Step 5. Rectifier — is part of — Charging station. Fast chargers rectify the mains current.
6. Step 6. Charging station — uses — Electrical grid. Powered from the grid.

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