Newspaper and LIGO: what they have in common

1. Step 1. Newspaper — is made of — Wood pulp. Cheap newsprint.
2. Step 2. Wood pulp — is used in — Paper machine. The raw material.
3. Step 3. Paper machine — works like — Conveyor belt. Fourdrinier’s endless wire mesh moves like a conveyor belt, forming the web of paper.
4. Step 4. Conveyor belt — has part — Ball bearing. The rollers turn on bearings.
5. Step 5. Ball bearing — is part of — Base isolation. Friction pendulum bearings.
6. Step 6. Base isolation — is part of — LIGO. The suspension damps ground vibrations.

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