Pear-shaped steel vessel and smart meter: what they have in common

1. Step 1. Pear-shaped steel vessel — is part of — Bessemer converter. A steel vessel with a refractory lining.
2. Step 2. Bessemer converter — uses — Oxidation. Oxygen in the air burns out the carbon.
3. Step 3. Oxidation — is used in — Electrochemical reaction. Redox reactions.
4. Step 4. Electrochemical reaction — is used in — Glucose meter. An electrochemical sensor.
5. Step 5. Glucose meter — has part — Liquid-crystal display. A screen.
6. Step 6. Liquid-crystal display — is part of — Smart meter. A display.

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