Network card and particle accelerator: what they have in common

1. Step 1. Network card — has part — Printed circuit board. On a printed circuit board.
2. Step 2. Printed circuit board — has part — Copper wire. Copper traces.
3. Step 3. Copper wire — is part of — Electromagnet. A winding.
4. Step 4. Electromagnet — is used in — Particle accelerator. Bending magnets.

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