Hard disk drive and kite: what they have in common

1. Step 1. Hard disk drive — has part — Neodymium magnet. The head actuator.
2. Step 2. Neodymium magnet — is part of — Wind turbine. Direct-drive generators.
3. Step 3. Wind turbine — uses — Lift. The blades are wings that create lift.
4. Step 4. Lift — is used in — Kite. A kite is held up by lift.

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