Laptop and freezer: what they have in common

1. Step 1. Laptop — has part — Heat pipe. Heat pipes.
2. Step 2. Heat pipe — uses — Latent heat. Evaporation and condensation.
3. Step 3. Latent heat — is used in — Vapour-compression cycle. The evaporation of the refrigerant produces cold.
4. Step 4. Vapour-compression cycle — is used in — Freezer. The vapour-compression cycle produces the cold.

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