QWERTY layout and boiler: what they have in common

1. Step 1. QWERTY layout — is used in — Keyboard. Computer keyboards inherited the typewriter layout.
2. Step 2. Keyboard — is part of — Laptop. The keyboard is built into the laptop's case.
3. Step 3. Laptop — has part — Heat pipe. Heat pipes.
4. Step 4. Heat pipe — uses — Latent heat. Evaporation and condensation.
5. Step 5. Latent heat — is used in — Boiler. Evaporation needs latent heat.

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