Wooden plank and electrical grid: what they have in common

1. Step 1. Wooden plank — is material for — Boomerang. Wood.
2. Step 2. Boomerang — uses — Lift. The blades are wings that create lift.
3. Step 3. Lift — is used in — Wind turbine. The blades are wings that create lift.
4. Step 4. Wind turbine — has part — Electric generator. A generator.
5. Step 5. Electric generator — is part of — Power station. Generators produce the current.
6. Step 6. Power station — is part of — Electrical grid. Power stations feed the grid.

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