Ratchet and radar: what they have in common

1. Step 1. Ratchet — includes — Freewheel. A ratchet.
2. Step 2. Freewheel — uses — Torque. It transmits torque in one direction only.
3. Step 3. Torque — is used in — Turbine. The flow creates torque.
4. Step 4. Turbine — is part of — Turbojet engine. The turbine drives the compressor.
5. Step 5. Turbojet engine — is part of — Jet fighter. A turbojet.
6. Step 6. Jet fighter — has part — Radar. A radar.

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