Heated drying cylinders and monitor: what they have in common

1. Step 1. Heated drying cylinders — is part of — Paper machine. Heated cylinders dry the paper.
2. Step 2. Paper machine — works like — Conveyor belt. Fourdrinier’s endless wire mesh moves like a conveyor belt, forming the web of paper.
3. Step 3. Conveyor belt — has part — Ball bearing. The rollers turn on bearings.
4. Step 4. Ball bearing — is part of — Hard disk drive. Bearings (later fluid-dynamic ones).
5. Step 5. Hard disk drive — is part of — Personal computer. A hard disk.
6. Step 6. Personal computer — has part — Monitor. A monitor.

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