Seaplane floats and glasses: what they have in common

1. Step 1. Seaplane floats — is part of — Seaplane. They keep the plane on the water and serve as skis for the takeoff run.
2. Step 2. Seaplane — has part — Propeller. A propeller.
3. Step 3. Propeller — is part of — Quadcopter (drone). Air propellers.
4. Step 4. Quadcopter (drone) — has part — Smartphone camera. A camera.
5. Step 5. Smartphone camera — is part of — AR glasses. Cameras.
6. Step 6. AR glasses — evolved from — Glasses. Glasses with a display.

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