Wood-fired oven and personal computer: what they have in common

1. Step 1. Wood-fired oven — is made of — Brick. Wood-fired ovens are built of firebrick.
2. Step 2. Brick — is material for — Power station. The buildings of the first power stations were brick.
3. Step 3. Power station — is part of — Electrical grid. Power stations feed the grid.
4. Step 4. Electrical grid — has part — Transformer. Transformer substations.
5. Step 5. Transformer — is part of — Switched-mode power supply. A high-frequency transformer.
6. Step 6. Switched-mode power supply — is part of — Personal computer. A power supply.

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