Outboard motor and internet: what they have in common

1. Step 1. Outboard motor — has part — Propeller. A propeller.
2. Step 2. Propeller — is part of — Quadcopter (drone). Air propellers.
3. Step 3. Quadcopter (drone) — has part — Smartphone camera. A camera.
4. Step 4. Smartphone camera — is part of — Endoscope. Video endoscopes.
5. Step 5. Endoscope — has part — Optical fibre. Flexible endoscopes use optical fibre.
6. Step 6. Optical fibre — is part of — Internet. The backbones are optical fibre.

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