Inclined plane and electric generator: what they have in common

1. Step 1. Inclined plane — is used in — Ladder. Climbing to a height.
2. Step 2. Ladder — is part of — Fire truck. An extending ladder.
3. Step 3. Fire truck — has part — Centrifugal pump. A fire pump.
4. Step 4. Centrifugal pump — is used in — District heating. Network pumps.
5. Step 5. District heating — uses — Combined heat and power plant. Heat from a CHP plant.
6. Step 6. Combined heat and power plant — has part — Electric generator. The turbine turns the generator.

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