Graphics card and petri dish: what they have in common

1. Step 1. Graphics card — has part — CPU cooler. Cooling.
2. Step 2. CPU cooler — has part — Heat sink. A heat sink.
3. Step 3. Heat sink — uses — Heat transfer. Heat dissipation.
4. Step 4. Heat transfer — is used in — Pasteurization. The product is heated to 60–70 °C.
5. Step 5. Pasteurization — uses — Germ theory of disease. Killing microbes with heat.
6. Step 6. Germ theory of disease — is used in — Petri dish. Growing bacterial cultures.

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