Cellular network and newcomen engine: what they have in common

1. Step 1. Cellular network — is used in — Mobile phone. It works in a cellular network.
2. Step 2. Mobile phone — has part — Microprocessor. A processor is in control.
3. Step 3. Microprocessor — is part of — Insulin pump. A dosing controller.
4. Step 4. Insulin pump — has part — Piston. The reservoir’s plunger.
5. Step 5. Piston — is part of — Newcomen engine. Atmospheric pressure moves the piston.

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