Infrared radiation and conveyor belt: what they have in common

1. Step 1. Infrared radiation — is used in — Thermal camera. Heat radiation.
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.

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