Weather satellite and paper machine: what they have in common

1. Step 1. Weather satellite — has part — Thermal camera. Infrared radiometers.
2. Step 2. Thermal camera — has part — Image sensor. A microbolometer array.
3. Step 3. Image sensor — is part of — Trackball. An optical sensor of the ball’s motion.
4. Step 4. Trackball — has part — Ball bearing. The ball rotates on supports.
5. Step 5. Ball bearing — is part of — Conveyor belt. The rollers turn on bearings.
6. Step 6. Conveyor belt — works like — Paper machine. Fourdrinier’s endless wire mesh moves like a conveyor belt, forming the web of paper.

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