Network card and oil well: 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 — uses — Wire drawing. Drawing.
4. Step 4. Wire drawing — is used in — Wire rope. The wire is drawn.
5. Step 5. Wire rope — is made of — Wrought iron. Albert’s rope (1834) is made of iron wire.
6. Step 6. Wrought iron — is material for — Oil well. The casing pipes are iron.

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